A bag contains 1 red ball and 2 white balls. One ball is randomly selected from the bag and then returned. What is the probability that exactly one of the first five balls selected is white?
1 Answer
Jan 14, 2017
The answer is
Explanation:
This is a binomial distribution.
The probability of getting 1 white ball on one draw is
The probability of not getting a white ball on one draw
The probability of getting 1 white ball on the five draws is
Therefore,