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4. a) Let X, Y be random variables and Y = 2+ 1.5X. Find the correlation coefficient p = Cov(X,Y) var(X)var(Y) * b) Compute

4. a) Let X, Y be random variables and Y = 2+ 1.5X. Find the correlation coefficient p = Cov(X,Y) var(X)var(Y) * b) Compute correlation coefficient for the following set of numbers: (-2,5), (-4,4), (6,3), (8,2), (-10, 1) .

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