Question: Let X be a random variable with E[X] = 1 and var(X) = 4. Find the following: (a) E [2X 4]; (b) E[X2]; (c)

Let X be a random variable with E[X] = 1 and var(X) = 4. Find the following:
(a) E [2X – 4];
(b) E[X2];
(c) E [(2X – 4) 2].

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