Question: LetXbe a random variable such thatE(X) = 5 andE(2X(X1)) = 55. (a) FindE(X2). (b) FindVAr(X). (c) Apply Chebyshevs inequality to find an upper bound to

LetXbe a random variable such thatE(X) = 5 andE(2X(X1)) = 55. (a) FindE(X2).

(b) FindVAr(X).

(c) Apply Chebyshevs inequality to find an upper bound to the probabilityP(|XE(X)| 5).

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