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a) Suppose a family has three children and you are told that at least one of them is a girl. What is the probability that all three children are girls? Define events clearly and use correct probability notation.

b) Assume that a family has n children and you are told that at least one of them is a girl. Find a general expression (as a function of n) for the probability that all the children are girls.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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