Question: Let X be a random variable with the following probability distribution. Value x of X P(X=x) 10 0.05 20 0.10 30 0.15 40 0.60

Let X be a random variable with the following probability distribution. Value x of X P(X=x) 10 0.05 20 0.10 30 0.15 40 0.60 50 0.10 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (XY) of X. E(X) =] (b) Find the variance Var(X) of X. Var(x) =

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