Let X be a random variable with the following probability distribution. Value x of X P(X=x) 20 0.15 30 0.20 40 0.05 50 0

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Let X Be A Random Variable With The Following Probability Distribution Value X Of X P X X 20 0 15 30 0 20 40 0 05 50 0 1 (87.58 KiB) Viewed 133 times

Let X be a random variable with the following probability distribution. Value x of X P(X=x) 20 0.15 30 0.20 40 0.05 50 0.05 60 0.10 70 0.45 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. E (X) = 0 (b) Find the variance Var(x) of X. Var(x) = 0