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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.

##### Solution Summary

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

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###### Education
• MSc, Osmania University
• MSc, Indian Institute of Technology - Roorkee (I.I.T.-ROORKEE)
• BSc, Banaras Hindu University
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