Theoretical and Experimental Probability

Key Questions

• How do you find odds in favor and odds against?

  Answer:

  determine the number of winning outcomes and losing outcomes then divide each by the total number of outcomes.

  Explanation:

  If there are 4 chances of winning and 10 possible outcomes then the odds of winning are 4/10 or 2/4

  If there are 5 chances of winning and 10 possible outcomes then the odd of losing are 5/10 = 1/2

  It is possible that some outcomes are neutral and do not result in either winning or losing In this example 1/10

  David Drayer · 1 · Aug 9 2018
• How do you calculate theoretical probability?

  Theoretical Probability

  Assume that each outcome is equally likely to occur.

  Let #S# be a sample space (the set of all outcomes), and let #E# be an event (a subset of #S#).

  The probability of the event #E# can be found by

  #P(E)={n(E)}/{n(S)}#,

  where #n(E)# and #n(S)# denote the number of outcomes in #E# and the number of outcomes in #S#, respectively.

  ---

  Example

  What is the probability of rolling a multiple of 3 when you roll a standard die once?

  Since all outcomes are 1 through 6, we have the sample space

  #S={1,2,3,4,5}#

  Since all multiple of 3 are 3 and 6, we have the event

  #E={3,6}#

  Hence, the probability of rolling a multiple of 3 is

  #P(E)={n(E)}/{n(S)}=2/6=1/3#

  ---

  I hope that this was helpful.

  Wataru · 2 · Nov 6 2014

• How do you calculate experimental probability?
• How do you calculate theoretical probability?
• How do you find a sample space?
• How do you determine the theoretical probability of rolling a five on a die?
• How do you find odds in favor and odds against?
• What are the odds against drawing a face card?
• What is the probability p(diamonds)?
• What is the probability that the fish chosen will be a trout if a fish tank contains 25 trout, 20 bass, 15 perch, and no other kinds of fish?
• A box contains six yellow, two red and two blue cubes. What is the probability of picking a yellow cube out of the box?
• A museum worker randomly displays 6 historical writings in a row. What is the probability that she lines them up from the oldest to the most recent from left to right?
• Nine qualified applicants apply for a part-time job. If the manager randomly hires 2 of them, what is the probability that he hires the 2 oldest?
• There are 3 red and 8 green balls in a bag. If you randomly choose balls one at a time, with replacement, what is the probability of choosing 2 red balls and then 1 green ball?
• When randomly choosing two cards from a standard deck of cards without replacement, what is the probability of choosing a queen and then a king?
• Suppose 4 dice are rolled, what is the probability that 1 number appears at least twice?
• A survey revealed that 44% of people are entertained by reading books, 46% are entertained by watching TV, and 10% are entertained by both books and TV. What is the probability that a person will be entertained by either books or TV?
• If 1 in 5 vehicles are green, and I have 5 vehicles, what is the probability of me having a green vehicle?
• What is the probability of B if they are independent events P(A)= 3/7, P(A then B)=1/3?
• If you have a 20% chance of success at something on each try, what is your total probability of being successful after 5 tries?
• Blood types A, B, O, and AB have percentages 40%, 20%, 30% and 10%. If two individuals are chosen at random, assuming independence, how do you find probability that one is blood type A and the other is type O?
• A jar contains 5 red marbles, 3 green marbles, 2 yellow marbles, and 1 blue marbles. How do you find the probability of a green or yellow marble?
• If you flip a coin, what is the probability that the tails side will be up?
• A sock drawer contains eight navy blue socks and five black socks with no other socks. If you reach in the drawer and take two socks without looking and without replacement, what is the probability that you will pick a navy sock and a black sock?
• A sock drawer contains eight navy blue socks and five black socks with no other socks. If you reach in the drawer and take two socks without looking and without replacement, what is the probability that at least one navy sock will be selected?
• A sock drawer contains eight navy blue socks and five black socks with no other socks. If you reach in the drawer and take two socks without looking and without replacement, what is the probability that the colors of the two socks will match?
• If there's a 65% chance of getting diabetes and 70% chance of getting heart failure, what the probability of getting either diabetes or heart failure?
• A store manager found that 20 of his 50 ties in stock are striped. What is the probability that a random selection of a tie to show a customer will be striped?
• Twenty percent of the clients of a large hair salon are female. In a random sample of 4 clients, what is the probability that exactly 3 clients are female?
• Two marksmen fire at a target simultaneously. Jiri hits the target 70% of the time and Benita hits the target 80% of the time. How do you determine the probability that they both hit the target?
• Two marksmen fire at a target simultaneously. Jiri hits the target 70% of the time and Benita hits the target 80% of the time. How do you determine the probability that they both miss the target?
• Two marksmen fire at a target simultaneously. Jiri hits the target 70% of the time and Benita hits the target 80% of the time. How do you determine the probability that Jiri hits it but Benita misses?
• Two marksmen fire at a target simultaneously. Jiri hits the target 70% of the time and Benita hits the target 80% of the time. How do you determine the probability that Benita hits it but Jiri misses?
• Given P(A) = 0.4, P(B) = 0.35, and P(A intersect B) = 0.14, what is the probability that neither A nor B takes place?
• When a mean is 40 and standard dev. is 7.5, how do you find probability that a given value will be greater than 55.75?
• A card is drawn from a well-shuffled deck of 52 cards. How do you find P(drawing an ace or a 9)?
• Based on meteorological records, the probability that it will snow in a certain town on January 1st is 0.401. How do you find the probability that in a given year it will not snow on January 1st in that town?
• A number cube is rolled, then what is the probability of rolling an odd number or a power of two?
• A number cube is rolled, then what is the probability of rolling an even number or a multiple of six?
• 1-two coins are tossed simultaneously. what is the probability of tossing two heads?
• 2-a coin is tossed three times, then what is the probability of tossing three heads in succession?
• 3-a coin is tossed three times, what is the probability of tossing exactly two heads?
• 4-a coin is tossed three times, what is the probability of tossing at least two heads?
• 5-a standard die is rolled, what is the probability of rolling a 4?
• Two standard dice are rolled, what is the probability of rolling a total of 9?
• 8-two standard dice are rolled, what is the probability that the total of the two dice is less than 6?
• What is the probability of drawing a red face card from a standard deck of playing cards?
• Two identical spinners each have five equal sectors that are numbered 1 to 5. What is the probability of a total of 7 when you spin both spinners?
• Kevin has four red marbles and eight blue marbles. He arranges these twelve marbles randomly, in a ring. How do you determine the probability that no two red marbles are adjacent?
• A bin contains 71 light bulbs of which 9 are defective. If 6 light bulbs are randomly selected from the bin with replacement, how do you find the probability that all the bulbs selected are good ones?
• Assume that 7 people, including the husband and wife pair, apply for 6 sales positions. People are hired at random. What is the probability that both the husband and wife are hired?
• Assume that 7 people, including the husband and wife pair, apply for 6 sales positions. People are hired at random. What is the probability that one is hired and one is not?
• A coin is tossed and a die is rolled. What is the probability that the coin shows heads and the die shows 3?
• A student makes random guesses for 10 true/false questions. What is the probability of getting one correct answer?
• A group of volleyball players consists of four grade 11 students and six grade 12 students. If six players are chosen at random to start a match, what is the probability that three will be from each grade?
• If a bowl contains ten hazelnuts and eight almonds, what is the probability that four nut randomly selected from the bowl will all be hazelnuts?
• Without looking Jenny randomly selects two socks from a drawer containing four blue, three white, and five black socks, none of which are paired up. what is the probability that she chooses two socks of the same color?
• A euchre deck has 24 cards; the 9, 10, jack, queen, king and the ace of each suit. if you were to deal out five cards from this deck, what is the probability that they will be a 10, jack, queen, king, and ace all from the same suit?
• A fair coin is tossed 30 times What is the probability that the coin will show heads fewer than 17 times?
• What is the probability of rolling a number cube and it landing on a number less than 3?
• What is the probability of rolling a number cube and it landing on the number 3?
• A jar of M&Ms contains 100 candy pieces, 15 are red. a handful of 10 is selected. What is the probability that 3 of the 10 selected are red?
• A fair die is rolled 10 times. What is the probability that an odd number (1, 3, or 5) will occur less than 3 times?
• A fair die is rolled 10 times. What is the probability that an even number (2, 4, or 6) will occur between 2 and 4 times?
• The two dice are tossed. What is the probability of the event that the sum of two numbers on the both dice at least equal 8?
• The two dice are tossed. What is the probably of the event that the sum of two numbers on the both dice at least equal 6 and at most equal 9?
• A box holds 240 eggs. The probability that an egg is brown is 0.05. How do you find the expected number of brown eggs in the box?
• A box holds 240 eggs. The probability that an egg is brown is 0.05. How do you find the probability that there are 15 brown eggs in the box?
• A box holds 240 eggs. The probability that an egg is brown is 0.05. How do you find the probability that there are at least 10 brown eggs in the box?
• Let A be the set of all composites less than 10, and B be the set of positive even integers less than 10. How many different sums of the form a + b are possible if a is in A and b is in B?
• A jar contains 5 white, 7 blue, and 8 red marbles. If you remove 1 marble at a time, randomly, what is the minimum number that you must remove to be certain that you have at least 3 marbles of each color?
• The probability of a flood in any given year in a region prone to floods is 0.2. What is the probability of flooding, at least once in four years?
• A telephone company claims that directory assistance will give you the right number 95% of the time you make calls. If you make 10 calls, what would be the probability of getting the right number all 10 times?
• The probability of a given event is 1/x . If the experiment is repeated n times, what is the probability that the event does not occur in any of the trials?
• There are four students, all of different heights, who are to be randomly arranged in a line. What is the probability that the tallest student will be first in line and the shortest student will be last in line?
• Sal has a small bag of candy containing three green candies and two red candies. While waiting for the bus, he ate two candies out of the bag, one after another, without looking. What is the probability that both candies were the same color?
• You roll 2 dice. What is the probability that the sum of the dice is odd or 1 die shows a 4?
• A drawer contains exactly 5 red, 4 blue and 3 green pencils. if two of the pencils are selected at random one after the other without replacing the first, what is the probability that the first one is red and the second one is green?
• Out of 7 lottery tickets 3 are prize-winning tickets. If someone buys 4 tickets what is the probability of winning at least two prizes?
• Out of 7 lottery tickets 3 are prize-winning tickets. If someone buys 4 tickets what is the probability of winning exactly one prize?
• Out of 7 lottery tickets 3 are prize-winning tickets. If someone buys 4 tickets what is the probability of not winning any prize at all?
• Among 8 electrical components exactly three are known to not function properly. 5 components are randomly selected, how do you find the probability that exactly two components function properly?
• Among 8 electrical components exactly three are known to not function properly. 5 components are randomly selected, how do you find the probability that all the components function properly?
• What is the probability of spinning a number greater than 5 on a spinner numbered 1-8 and tossing a tail on a coin?
• A jar holds 15 red pencils and 10 blue pencils. What is the probability of drawing 2 red pencils from the jar?
• There are 15 students. 5 of them are boys and 10 of them are girls. If 5 students are chosen, what is the probability that 2 or them are boys?
• There are 15 students. 5 of them are boys and 10 of them are girls. If 5 students are chosen, what is the probability that there are at least 2 boys?
• A red die and green die have been rolled. What is the probability the red die is greater than the green die?
• Only 7% of the American Population have type O-negative blood. If 10 people appear at random to give blood, what is the probability that at least 1 of them will be O-negative?
• A king comes from a family of three children. What is the probability he has a brother?
• An urn contains 7 white balls and 4 red balls. Draw three balls from the urn without replacement. What us the probability that the first ball is read, the second white, and the third red?
• An urn contains 7 white balls and 4 red balls. Draw three balls from the urn without replacement. What is the probability all balls are white?
• You roll two dice. What is the probability that the sum of the dice is odd and both dice show the number 5?
• What are the odds in favor of randomly selecting a black face card from a standard deck of cards?
• If you were to toss three coins, what are the odds against them all landing heads up?
• What are the odds against randomly picking a green apple from a fruit bowl containing seven green apples and four red ones?
• What is the probability of of randomly selecting a blue sock from an unorganized sock drawer if the odds in favor of not picking a blue sock are 3 to 7?
• What is the probability that three standard dice rolled simultaneously will all land with the same number facing up?
• A box contains 5 white tags numbered 1 to 5, 5 red tags numbered from 1 to 5, and 5 green tags numbered from 1 to 5. If two tags are selected at random and without replacement what is the probability that both are the same number?
• A box contains 5 white tags numbered 1 to 5, 5 red tags numbered from 1 to 5, and 5 green tags numbered from 1 to 5. If two tags are selected at random and without replacement what is the probability that both are the same color?
• In a class of 30 students, there are 17 girls and 13 boys. Five are A students, and three of these students are girls. If a student is chosen at random, what is the probability of choosing a girl or an A student?
• In the United States, 43% of people wear a seat belt while driving. If two people are chosen at random, what is the probability that both of them wear a seat belt?
• Three cards are chosen at random from a deck without replacement. What is the probability of getting a jack, a ten and a nine in order?
• In a school, 14% of students take drama and computer classes, and 67% take drama class. What is the probability that a student takes computer class given that the student takes drama class?
• In a shipment of 100 televisions, 6 are defective. If a person buys two televisions from that shipment, what is the probability that both are defective?
• Oliver has 30 marbles, 12 are red, 10 are green and 8 are black. he asks three of his friends to take out a marble and replace it. what is the probability that his friends each take out a different colored marble?
• Sue goes through 4 sets of traffic lights each morning to work. there is a 5/8 chance that she will be caught by each of the lights. if she is stopped by 3 or more of the lighs then she is late for work. what is the probability that she will be late?
• There are 24 jellybeans, 10 red, 6 black and 8 yellow. what is the probability that if 2 jelly beans are taken out without replacement one is red and one is yellow?
• If 3 jelly beans are taken from the above question without replacement, what is the probability that the first is red, the second is black and the third is yellow?
• In a certain health club, half the members are women, one-third of the members use free weights, and one-fifth of the members are women who use free weights. A female member is elected treasurer. What is the probability that she uses free weights?
• If you roll two dice, the probability that you roll a sum of 10 is approximately 0.083. What is the probability that you first roll a ten on the 10th roll? What is the average number of rolls until you first roll a 10?
• One Card is drawn from a deck of 52. What is the probability? Whats the probability that it is a diamond?
• One Card is drawn from a deck of 52. What is the probability? Whats the probability that it is a king?
• One Card is drawn from a deck of 52. What is the probability? Whats the probability that it is an ace OR king?
• Suppose a family has three children.find the probability that the first two children born are boys. What is the probability that the last two children are girls?
• The probability of an event is 4/5. How do you find the odds against this event?
• The probability of an event is 3/5, what are the odds that the event will occur?
• A bag contains 4 red, 6 white, and 7 blue marbles. How many ways can 3 red, 2 white, and 4 blue marbles be chosen?
• Two coins are taken at random from a bank containing 4 dimes, 8 quarters, and 3 nickels. What is the probability that both coins will be quarters?
• If a coin is flipped twice what is the probability both flips will end up heads?
• Consider a unit circle with an inscribed equilateral triangle. A chord is selected at random. What is the probability that the chord is longer than a side of the triangle?
• A coin is tossed 4 times, what is the probability of Not getting 2 heads would mean getting all tails or 3 tails and 1 head?
• Suppose you roll a pair of fair 6-sided dice 36 times. What is the exact probability of getting at least three 9’s?
• A face-down deck of cards contains five hearts, three diamonds, five clubs and four spades. what is the probability that the first two cards drawn will be diamonds followed by hearts?
• The names of six boys and nine girls from your class are put into a hat. What is the probability that the first two names chosen will be a boy followed by a girl?
• Your drawer contains five red socks and eight green socks. its too dark to see which are which. What is the probability that the first two you pick are both red socks?
• There are five black cats and four gray cats in a cage and none of them want to be in there. the cage door opens briefly and two cats escape. What is the probability that both escaped cats are gray?
• The names of eight boys and six girls from your class are put into a hat what is the probability that the first two names chosen will both be boys?
• Your drawer contains seven red socks and five green socks its too dark to see which are which what is the probability that the first two you pick are both green socks?
• There are three black cats and six gray cats in a cage, and none of them want to be in there the cage door opens briefly and two cats escape. What is the probability that both escaped cats are gray?
• The face-down deck of cards contains four hearts six diamonds three clubs and six spades. What is the probability that the first two cards drawn will both be spades?
• A box contains four green marbles eight blue marbles and three orange marbles. without looking, what is the probability that the first two picked will both be green?
• What is the probability of a couple having six girls in a row?
• A committee of three is to be selected at random from five married couples.What is the probability that no two members of the committee are married to each other?
• A committee of three is to be selected at random from five married couples. What is the probability that the committee is made up of all women or all men?
• A committee of three is to be selected at random from five married couples. What is the probability that the committee contains an odd number of women or an odd number of men?
• An eight sided dice is rolled 3 times. What is the probability of getting three 7's?
• The Emory Harrison family of Tennessee had 13 boys. What is the probability of a 13-child family having 13 boys?
• In a group of 294 students, 130 are seniors and 121 are males. Exactly one-half of seniors are females. If a student is randomly selected, what is the probability that the student is a senior or a female?
• Question #de35e
• Suppose there are m Martians & n Earthlings at a peace conference. To ensure the Martians stay peaceful at the conference, we must make sure that no two Martians sit together, such that between any two Martians there is at least one Earthling?(see detail)
• Question #7378c
• Question #5f087
• Question #651f8
• Calculate the probability of obtaining obtaining on rolling a fair dice: a) an even number, b) a number greater than 2, c) an odd number, d) a number divisible by 3?
• Digit d is randomly selected from the set {1,2,3,4,5,6,7,8,9}. Without replacement of d, another digit, e, is selected. What is the probability that the two-digit number de is a multiple of 3?
• A bag contains 6 red apples and 8 green apples. You choose 2 apples. What is the probability of picking a red and green apple without replacement?
• Three cards are selected at random from a group of 7. Two of the cards have been marked with winning numbers. What is the probability that exactly 1 of the 3 cards has a winning number?
• Three cards are selected at random from a group of 7. Two of the cards have been marked with winning numbers. What is the probability that at least one of the 3 cards has a winning number?
• Three cards are selected at random from a group of 7. Two of the cards have been marked with winning numbers. What is the probability that none of the 3 cards will have a winning number?
• Question #a26cd
• Question #fcf15
• Question #30daf
• Suppose two number cubes are rolled what is the probability that a sum of 12 or 11 turns up?
• For the experiment of rolling two fair die, how do you find the probability the sum of the two die is an odd number?
• What is the theoretical probability of rolling a sum of 6 on one roll of two standard number cubes?
• Which is the probability of rolling the following sums with two number cubes?
• A red number cube and a blue number cube are rolled. If all numbers are equally likely, what is the probability that the number on the red cube is greater?
• When two dice are rolled, how do you find the probability of getting a sum of 6 or 7?
• When two dice are rolled, how do you find the probability of getting a sum less than 11?
• What is the probability that the sum of the 2 rolls is less than 6 given that the first roll is a 3?
• Two number cubes are rolled --one white and one yellow. How do you find the probability that the white cube shows a 6 and the sum is greater than 9?
• Rolling an 8-sided die, after 5 rolls, what is the probability of at least 1 number being rolled twice?
• Two dice each have the property that a 2 or a 4 is three times as likely to appear as a 1, 3, 5, or 6 on each roll. What is the probability that a 7 will be the sum when the two dice are rolled?
• Given a fair 12-sided dice: If the dice is rolled ten times, what is the probability of rolling exactly two 6s?
• If I have a 20 sided dice and roll it twice, what are the odds that I will roll the same number twice?
• If you toss a pair of fair dice, what is the expected value for the maximum of the values on the two dice?
• Julie throws a fair red dice once and a fair blue dice once. How do you calculate the probability that Julie gets a six on both the red dice and blue dice. Secondly, calculate the probability that Julie gets at least one six?
• You have three dice: one red (R), one green (G), and one blue (B). When all three dice are rolled at the same time, how do you calculate the probability of the following outcomes: 6(R) 6(G) 6(B)?
• You have three dice: one red (R), one green (G), and one blue (B). When all three dice are rolled at the same time, how do you calculate the probability of the following outcomes: 6(R) 5(G) 4(B)?
• You have three dice: one red (R), one green (G), and one blue (B). When all three dice are rolled at the same time, how do you calculate the probability of the following outcomes: no sixes at all?
• You have three dice: one red (R), one green (G), and one blue (B). When all three dice are rolled at the same time, how do you calculate the probability of the following outcomes: the same number on all dice?
• You have three dice: one red (R), one green (G), and one blue (B). When all three dice are rolled at the same time, how do you calculate the probability of the following outcomes: a different number on all dice?
• If I were to roll a 6-sided die 3 times, what are the chances that I would roll a one during at least one of these rolls?
• If I roll two dice 4 times, what is the probability of getting doubles at least once?
• In a certain two-dice game, you win 4 dollars if a prime number of dots appear. Otherwise you lose 1 dollar. What is the approximate expected value of the payoff?
• If dice are rolled what is probability that a six first appears on the 10th roll?
• What is the probability of rolling a total of 7 with two dice at least once in 10 rolls?
• You roll two dice. What is the probability that the sum of the dice is greater than 8 and that one of the dice shows a 6?
• You roll two dice. What is the probability of getting a 3 or a 6 on the second die, given that you rolled a 1 on the first die?
• You roll two dice. What is that probability that the total of the two dice is even or that that total is less than 5?
• If you are rolling 3 dice, what is the probability of rolling 2 sixes?
• How do you calculate the probabilities, when you throw two dice, of obtaining (a) a 5, and (b) an 11?
• A pair of dice is tossed. How do you find the probability of the sum of the numbers being #8?#
• A pair of dice is tossed. How do you find the probability with sum of the numbers is greater than 7?
• A pair of dice is tossed. How do you find the probability of the sum of the numbers being 6 or 11?
• A pair of dice is tossed. How do you find the probability with sum of the numbers if not 8?
• A pair of dice is tossed 10 times in succession. What is the probability of getting no 7 and 11 in any of the 10 tosses?
• What are the odds of rolling 10 dice the same?
• 2 fair dice are thrown. How do you calculate the probability that the sum of the 2 dice is 1?
• 2 fair dice are thrown. How do you calculate the probability that the event that the sum on the 2 dice is 8?
• 2 fair dice are thrown. How do you calculate the probability that the event that the sum on the 2 dice > 1?
• 2 fair dice are thrown. How do you calculate the probability that the event that the sum on the 2 dice is not equal to 8?
• You roll two dice, what is the probability that two numbers you roll will be the sum of 3?
• An experiment consists of rolling 2 fair dice. How do you find each probability of P(total shown = 5)?
• An experiment consists of rolling 2 fair dice. How do you find each probability of P(rolling two 4)?
• Question #d6bd8
• Question #5208b
• Is it true that #cos^(-1) x = 1/cos x# ?
• Question #a6358
• Question #342b9
• Question #34319
• Question #81d8b
• A fair #6#-sided die is rolled up to #3# times as described below to give a score. If the score is #5# then what is the probability that it was obtained in #2# rolls?
• Question #d5a42
• Question #219e4
• You are dealt one card from a 52 card deck. How do you find the probability that you are not dealt a king?
• You are dealt one card from a standard 52-card deck. How do you find the probability of being dealt a two?
• What is the probability of getting either a sum of 8 or at least one 4 in the roll of a pair of dice?
• In a game you have 1/36 probability of winning $85 and a 35/36 probability of losing $4. What is the expected value?
• A fair die is rolled 5 times. What is the probability of having no 2 and no 4 among the rolls?
• Sarah rolls a die twice. What is the probability that she rolls a 3 and then an even number?
• The probability that a football game will go into overtime is 10% what is the probability that exactly two ofthree football games will go to into overtime?
• There are three pumpkins.Each two of them are weighed in pairs and the final results are: #12# #"kg"#, #13# #"kg"#, #15# #"kg"#, What is the weight of the lightest pumpkin?
• What is the probability of rolling a five on one die three times in a row?
• A single six-sided die is rolled twice. What is the probability of rolling a 1 on the first roll and a 1 on the second roll?
• A spinner has 3 equal sections that are red,white, and blue. What are the probability of not landing on blue?
• Jay has a biased dice numbered 1 to 6. The probability of getting a 6 with this dice is 1/6. lf Jay throws the 60 times, how many times is he expected to get a 6?
• Michael has 4 red shirts, 3 green shirts, and 5 blue shirts in his closet. If he randomly selects a shirt what is the probability that he chooses blue or red?
• If a card is chosen at random from a pack of 52 playing cards, what is the probability of a Queen or a Club?
• You are rolling two dice at the same time What is the probability of rolling a sum of 6 or 7?
• You choose a card at random from a standard deck of cards. what is the probability that you do not choose a red king?
• Question #30e1c
• Two cards are drawn from an deck of 52 cards, without replacement. How do you find the probability that exactly one card is a spade?
• The probability of picking a red pencil out of a drawer is 3/11. The only other color of pencil is blue, and there are 16 blue pencils. If 2 red pencils are added, what will be the new probability of picking a blue pencil?
• Of the 2,598,960 different five card hands from a 52 card deck, how many would contain 2 black cards and 3 red cards?
• Two fair dice are rolled. How do you find the probability that the sum of the two numbers is not greater than 5?
• A number cube labeled with number 1,2,3,4,5,6 is tossed. What is the odds of the cube showing a number less than 3?
• A drawer has 4 red socks and 2 blue socks. What is the probability of a match after picking 2 socks?
• For a standard deck of 52 what is the probability of randomly picking either an ace or a king?
• A die is rolled. What is the probability of the outcome is either 2 or a number less than 4?
• A card is drawn from a pack of 52. How do you find the probability of that card to be an Jack or a King?
• A bag holds 6 tiles: 2 lettered and 4 numbered. Without looking you choose a tile. What is the probability of drawing a number?
• Question #d8b16
• A bag contains 3 green marbles, 3 blue marbles, and 4 red marbles, what is the probability that a red marble is randomly chosen, replaced, and then another red marble is randomly chosen the second pick?
• A pair of dice is rolled. A possible event is rolling a sum that is a multiple of 5. What is the probability of the complement of this event?
• Question #44fbc
• One ticket is drawn at random from a bag containing 30 tickets numbered from 1 to 30. How do you find the probability that it is a multiple of 2 or 3?
• A wheel contains eight slices, numbered sequentially 1 through 8 The probability of landing on each slice is equal. The wheel is spun two times. What is the probability that the sum of the two spins is greater than 10?
• A sporting goods store received an order of 90 baseball caps, of which 18 were green. If 1 of the 90 caps is selected at random, what is the probability it will not be green?
• The probability of rain tomorrow is #0.7#. The probability of rain the next day is #0.55# and the probability of rain the day after that is #0.4#. How do you determine #P("it will rain two or more days in the three days")#?
• A bag contains 4 red marbles, 3 blue marbles, and 7 green marbles. If a selected from the bag, what is the probability that it is blue?
• Question #cd284
• You flip a coin, toss a number cube, and then flip another coin. What is the probability that you will get heads on the first coin, a 3 or a 5 on the number cube, and heads on the second coin?
• Abag contains 10 marbles-three red, three blue, and four green. What is the probability of pulling a red marble, not replacing it, and then pulling a blue marble?
• A bag contains 3 red marbles, 2 blue marbles, and 5 green marbles. What is the probability of randomly selecting a blue marble, then without replacing it, randomly selecting a green marble?
• A bag contains 3 red balls and 3 blue balls. 2 balls are selected at random. How do you find the probability of selecting 2 red balls?
• A weather forecast says that there is a 40% chance of rain today. How do you find the odds against rain?
• A bag contains 21 red marbles, 22 green marbles, 24 orange marbles, and 10 yellow marbles. You choose a marble randomly from the bag What is the approximate probability that you will choose a green or yellow marble?
• Alex can choose between 3 pairs of pants and 4 shirts. How many different outcomes are in the sample space?
• The probability that Ruby receives junk mail is 11 percent. If she receives 94 pieces of mail in a week, about how many of them can she expect ti be junk mail?
• Two urns each contain green balls and blue balls. Urn I contains 4 green balls and 6 blue balls, and Urn ll contains 6 green balls and 2 blue balls. A ball is drawn at random from each urn. What is the probability that both balls are blue?
• Consider the experiment of tossing a die. What is the probability that we get an even number?
• If one card is drawn from a standard deck of 52 playing cards, what the probability of drawing is a red card?
• We start with 6 Black playing cards and we add cards to the point where the probability of drawing 2 Red cards in a row without replacement is #1/2#. How many cards do we add?
• We have Black cards and Red cards. We have 6 Black cards. We add Red cards until the probability of drawing two Red cards without replacement is #1/2#. How many Red cards do we need?
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• What is the probability of selecting a number at random from the numbers 1 to 24 that is not divisible by 3?
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• If a standard 6-sided die is rolled, what is the probability that the result will be at least 3 or an even number?
• Ron has a bag containing 3 green pears and 4 red pears. He randomly selects a pear then randomly selects another pear, without replacement. Which tree diagram shows the correct probabilities for this situation? Answer choices: http://prntscr.com/ep2eth
• A bag has 6 green marbles, 2 blue marbles, and 8 white marbles. If we draw one at a time, and then replace the marbles, what is the probability of a. getting a green one and then a blue? b. Of getting a white and then another white?
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• Or church committee has three liberals and five conservatives. if a committee of three people is the selected. find probability of one liberals and two conservative?
• Probability , kindly solve this question ?
• a) In how many ways can this be done? b) The coach received last minute funding to allow 3 additional players.Is how ways can he select the 3 additional players? c) One of the players is Tim. The probability that he will not be among the 8 selected?
• a) What is the probability that the entire shipment shall be accepted? b) What is the probability that the entire shipment shall be rejected?
• ?Ten slips of paper are each marked with a different number (from 0 to 9) and placed in a basket. A slip is pulled out, its number is recored (in the order it is drawn), and the slip is replaced. This is done 4 times.