Question: For a random variable X, suppose that E[X]=3 and Var(X)=5. Then (a) E[(2+X)2]= (b) Var(2+3X)=

For a random variable X, suppose that E[X]=3 and Var(X)=5. Then

(a) E[(2+X)2]=

(b) Var(2+3X)=

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