Exercise 1 Let X and Y are discrete random variables with a joint density function as follow ) = { ₁ ¡(x² + y), 0, f(x,y)=24 x = 0,1,2; y = 0,1,2 Otherwise 1) Find the value of Cov[X,Y]. 2) Find the value for both E(YIX = 1) and E(X|Y = 2).

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