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    Binomial Probability of Child's Hair Color

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    The probability that a couple will have a child with black hair is 0.6.
    If this couple has 7 children what is
    (a) the probability that exactly 3 of these children have black hair ?
    (b) the probability that no more than 2 of their children have black hair ?
    (c) the probability that none of the children have black hair
    (d) what is the mean number of their children that have black hair and what is
    the variance ?

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    Solution Summary

    This solution exemplifies binomial probability for child's hair color.