A couple decides to have 3 children. If they succeed in having 3 children and each child is equally likely to be a boy or a girl, What is the probability that they will have exactly 1 girl and 2 boys? Select: A) 3/4 B) 1/2 C) 5/8 D) 1 E) 1/4
Sample space = 2^3 = 8   Favourable events = {bgg}, {bgb}, {bbb}, {ggg}, {gbg},   Probability = 5/8 = 5/8.   Ans (5/8).
<result>C</result>
A couple decides to have 3 children. If they succeed in having 3 children and each child is equally likely to be a boy or a girl, What is the probability that they will have exactly 1 girl and 2 boys?