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A family has ﬁve children. Assuming that the probability of a girl on each birth was 0.5 and that the ﬁve births were independent, what is the probability the family has at least one girl, given that they have at least one boy?

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Danphredid Danphredid

Explanation:

100% the probability has to create exactly 50% so in theory you should end up with 2.5 girls. the last is a hermaphrodite

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