Birth order. A couple plans to have three children. There are 8 possiblearrangements of
Chapter 0, Problem 10.46(choose chapter or problem)
Birth order. A couple plans to have three children. There are 8 possiblearrangements of girls and boys. For example, GGB means the first two childrenare girls and the third child is a boy. All 8 arrangements are (approximately)equally likely.(a) Write down all 8 arrangements of the sexes of three children. What is theprobability of any one of these arrangements?(b) Let X be the number of girls the couple has. What is the probability thatX = 2?(c) Starting from your work in (a), find the distribution of X. That is, what valuescan X take, and what are the probabilities for each value?
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