# Find the mean and variance of a discrete random variable X having the probability function f(0) = 1/4, f(1) =1/2, f(2) = 1/4.

Chapter 24, Review question #23

Find the mean and variance of a discrete random variable X having the probability function f(0) = 1/4, f(1) =1/2, f(2) = 1/4.

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