Question: Let X be a random variable with the following probability distribution. Value x of X P (X=x) 0 0.05 10 0.10 20 0.40 30 0.20

Let X be a random variable with the following probability distribution. Value x of X P (X=x) 0 0.05 10 0.10 20 0.40 30 0.20 40 0.15 50 0.10 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X ) of X. E(X) = 1 X (b) Find the variance Var(X) of X. var (x) = 0 Continue

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