Suppose a random variable X has expected value E[X] quantities. (a) E[X-1] (b) E[X²] (c) E[(X− 1)²] (d) Var[3X + 2] = -4 and variance Var(X): 16. Compute the following

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A: E(X))=6 Var(X)=1

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Q: Find SD(6X+ 9).

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