Let be a random variable with the following probability distribution. Value x of X P(X=x) 2 0.15 3 0.25 4 0.45 5 0. 15
Let \\ be a random variable with the following probability distribution. Value x of X P(X=x) 2 0.15 3 0.25 4 0.45 5 0. 15 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. E(X) = 0 X 5 ? (b) Find the variance Var(X) of X. Var(x) = 1
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