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September 23rd, 2013, 05:08 AM   #1
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Probability and Statistics

Let X and Y be random variables with E(X|Y) = 2 Y , Var(X|Y)=6 Y^2, Var(Y) =10, E(Y)=7

a. Find the mean and variance of X.
b. Find the correlation coefficient between X and Y.
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