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Random Variableshard
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If XXX and YYY are independent and Var(X)=2,Var(Y)=8Var(X) = 2, Var(Y) = 8Var(X)=2,Var(Y)=8, what is Cov(X+Y,X−Y)Cov(X+Y, X-Y)Cov(X+Y,X−Y)?