Question: Let X and Y be two random variables with Var(X)=5, and Var(Y)=10 and Var(2X Y) = 18. Find the correlation coefficent of X and Y.

Let X and Y be two random variables with Var(X)=5, and Var(Y)=10 and Var(2X Y) = 18. Find the correlation coefficent of X and Y.

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