Consider the Composition of a Three-Child Family in Which the Children

Essay

Consider the composition of a three-child family in which the children were born at different times. Assume that a girl is as likely as a boy at each birth.
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Express the answers as fractions.
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What is the probability that there are two girls and a boy in the family?
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What is the probability that the oldest child is a girl?
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What is the probability that the youngest child is a girl and the oldest child is a boy?
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