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    Probability Distribution.

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    Three marbles are chosen without replacement from a box containing 12 red, 7 blue, and 8 yellow marbles. Let X be the number of blue marbles chosen.

    a) Find and graph the probability distribution of X.

    b) Find the mean of the random variable X.

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    Solution Summary

    This solution provides a detailed, step-by-step explanation of the given probability problem.