Question: Let X be a random variable with the following probability distribution. Value x of X P(X=x) 20 0.05 30 0.20 40 0.05 50 0.10 60

Let X" be a random variable with the following probability distribution. Value x of X P(X=x) 20 0.05 30 0.20 40 0.05 50 0.10 60 0.60 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. E(X) = 1 (b) Find the variance Var(X ) of X. Var(X) = 0

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