New research continues to highlight the long-term benefits of breastfeeding and

Question

New research continues to highlight the long-term benefits of breastfeeding and its relationship with healthy offspring development. Suppose you are hired to sample a community with low rates of birth control in order to pilot your proposed program to educate new mothers on the benefits of breastfeeding. In this community, the overall prevalence of breastfeeding is only 7%, and you are told to sample from 18 new mothers. What is the probability that at least one mother is currently breastfeeding? 0.638 0.362 0.721 0.729

Explanation / Answer

p = 0.17

n = 18

P(X > 1) = 1 - P(X = 0)

               = 1 - 18C0 * 0.170 * (1 - 0.17)18-0

               = 1 - 0.0349

               = 0.9651

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