Practice of Statistics in the Life Sciences
Practice of Statistics in the Life Sciences
4th Edition
ISBN: 9781319013370
Author: Brigitte Baldi, David S. Moore
Publisher: W. H. Freeman
Question
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Chapter 12, Problem 12.8AYK

(a)

To determine

To find: the mean number of unintended pregnancies? What is the mean number of woman not experiencing any pregnancy within the first year of usage?

(b)

To determine

To find: the standard deviation σ of the number X of women not experiencing a pregnancy during the first year on the birth control pill? What is the standard deviation σ of the number Y of women experiencing a pregnancy during that time?

(c)

To determine

To find: what is σ in this case? What happens to the standard deviation of a binomial distribution as the probability of a “success” gets close to 1?

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