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| rev | Admin | (Created page with "'''Solution: D''' Note that due to the independence of X and Y Var(Z) = Var(3X − Y − 5) = Var(3X) + Var(Y) = 32 Var(X) + Var(Y) = 9(1) + 2 = 11 . {{soacopyright | 2023}}") | May 6'23 at 16:02 | +175 |