Question: Let X be a discrete random variable with the probability P(X = x) = P(x) = 1/8 if x=1,2, 1/4 if x=3, 1/2 if x=4.

Let X be a discrete random variable with the probability P(X = x) = P(x) = 1/8 if x=1,2, 1/4 if x=3, 1/2 if x=4. (a) Find the expected value or mean of X, X . (c) Find the variance of X, x .

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