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The probability of a boy being born equals .50 or 1/2 as does the probability of...

The probability of a boy being born equals .50 or 1/2 as does the probability of a girl being born. for a randomly selected family with two children, what's the probability of a) two boys, that is, a boy and a girl? (Remember: before using the addition or multiplication rule, satisfy yourself that the various events are either mutually exclusive or independent, respectively.) b) two girls? c) either two boys or two girls?

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