Question: If (X_{1}) has mean 1 and variance 5 while (X_{2}) has mean - 1 and variance 5 , and the two are independent, find (a)

If \(X_{1}\) has mean 1 and variance 5 while \(X_{2}\) has mean - 1 and variance 5 , and the two are independent, find

(a) \(E\left(X_{1}+X_{2}\right)\);

(b) \(\operatorname{Var}\left(X_{1}+X_{2}\right)\).

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