Question: Let be a random variable and let a be a real-valued constant. (a) prove that Var (aY ) = a Var(Y) (b) what is the

Let be a random variable and let a be a real-valued

Let be a random variable and let a be a real-valued constant. (a) prove that Var (aY ) = a Var(Y) (b) what is the standard deviation of a

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