Question: A discrete random variable X has mean u and variance o? . Define function f : R R by f(t) = E((X t)) Express

A discrete random variable X has mean u and variance o? .

A discrete random variable X has mean u and variance o? . Define function f : R R by f(t) = E((X t)) Express the random variable f(X) as a polyno- mial with respect to X. Show that E(f(X)) = 202 .

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