Question: Let X be a discrete random variable with mass probability distribution function: 1 2 3 4 (f(x 4/10 1/10 3/10 2/10 Find E (x2)=

Let X be a discrete random variable with mass probability distribution

Let X be a discrete random variable with mass probability distribution function: 1 2 3 4 (f(x 4/10 1/10 3/10 2/10 Find E (x2)=

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