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A committee of 5 is to be selected from a group of 6 men and 9 women. If the selection is made randomly, what is the probability that the committee consists of 3 men and 2 women?

Question #5110a

What is the difference between VAR.S function and VAR.P function on Microsoft Excel?

What is the median, mode, mean, and range of 17, 19, 22, 22, 27, 31, 35, 37, 45, 98?

Assume that z scores are normally distributed with a mean of 0 and a standard deviation of 1. If #P(z>c)=.0559#, what is #c#?

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Find the percent of a standard normal model found in the region : #z<1.13#

A federal report stated that 88% of children under 18 were covered by health insurance in 2000. How large a sample is needed to estimate the true proportion of covered children with 90% confidence with a confidence interval of .05 wide?

A biology quiz consists of 14 multiplechoice questions. Nine must be answered correctly to receive a passing grade. If each question has 4 possible answers,what is the probability that a student who guesses at random will pass?

The correlation coefficient of a linear fit between two variables #X# and #Y# is #1#. I want to know, does the line containing the points for the strong negative correlation always have a slope of negative one? Thanks :)

Where will a prediction interval or a confidence interval be narrower: near the mean or further from the mean?

If the mean time between inflight aircraft engine shutdowns is 12500 operating hours, the 90th percentile of waiting times to the next shutdown will be?

Of 238 employees selected randomly from one company, 10.08% of them commute by carpooling. How do you construct a 90% confidence interval for the true percentage of all employees of the company who carpool?

A linear chain is made of 20 identical links. Each link can be made in 7 different colors. How many # physically # different chains are there?

How do confidence levels compare to significance levels?

How to find calculate this?

A manager states that, in 2003, on average a small and medium firm charged at least $ 3,000 on its business credit card. What are the appropriate null and alternative hypotheses?

The mean IQ score of statistics professors is less than 119. The significance level is 0.05. What is the null hypothesis (H0) and alternative hypothesis (H1)?

What is a discrete probability distribution? What two conditions determine a probability distribution?

At a football game, a researcher randomly asks 100 people to name their favorite sport. Is this a biased sample?

Question #1889a