Question: Let a chip be taken at random from a bowl that contains seven white chips, four red chips, and one blue chip. Let the random

Let a chip be taken at random from a bowl that contains seven white chips, four red chips, and one blue chip. Let the random variable X=1 if the outcome is a red chip, let X=4 if the outcome is a white chip, and let X=7 if the outcome is a blue chip. Find the pmf of X. Draw a line graph and probability histogram for this pmf. Find the mean and variance of X.

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