Question: Q#13 Let X be a random variable with the following probability distribution. Value x of X P(X=x) 20 0.60 30 0.05 40 0.05 50 0.15

Q#13

Let X be a random variable with the following probability distribution. Value x of X P(X=x) 20 0.60 30 0.05 40 0.05 50 0.15 60 0.15 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X ) of X. E (x) = I (b) Find the variance Var(X ) of X. Var (x) =

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