Assuming that a woman is equally likely to bear a boy as a girl, use a tree

Question:

Assuming that a woman is equally likely to bear a boy as a girl, use a tree diagram to compute the probability that a four-child family consists of one boy and three girls.

4.139 Skillbuilder Applet Exercise simulates generating a family. The “family”

will stop having children when they have a boy or three girls, whichever comes first. Assuming that a woman is equally likely to bear a boy or a girl, perform the simulation 24 times. What is the probability that the family will have a boy?

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