Answer: The random variable X, representing the number of
Chapter 9, Problem 8.23(choose chapter or problem)
The random variable X, representing the number of cherries in a cherry pu, has the following probability distribution: x 4567 P(X = x) 0.2 0.4 0.3 0.1 (a) Find the mean and the variance 2 of X. (b) Find the mean X and the variance 2 X of the mean X for random samples of 36 cherry pus. (c) Find the probability that the average number of cherries in 36 cherry pus will be less than 5.5.
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