Homework: HW7 Score: 0 of 1 pt 5.2.29 24 of 30 (25 complete) HW Score: 67.78%, 2

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Homework: HW7 Score: 0 of 1 pt 5.2.29 24 of 30 (25 complete) HW Score: 67.78%, 20.33 of 30 pts E Question Help to increase the likelihood that each baby will be a girl, but assume that the method has no eflect, so the probability of a girl is 0.5. Assume that the (a) through (c) below a. Find the mean and the standard deviation for the numbers of girls in groups of 42 births The value of the mean is ? Type an integer or a decimal. Do not round) Enter your answer in the answer box and then click Check Answer remaining

Explanation / Answer

Here we consider the case for binomial distribution with n = 42 ( number of couples ) and p = probability of girl = 0.5

Mean = n * p = 42 * 0.5 = 21

The value of the mean is 21

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