Question: Let X be a random variable such that E[X^2] E[X]^2 = 12 Find (a) Var(X) (b) E[(cX)^2] E[cX]^2 (c) Var(cX)

Let X be a random variable such that E[X^2] E[X]^2 = 12

Find (a) Var(X) (b) E[(cX)^2] E[cX]^2 (c) Var(cX)

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