Exercise 1 We are interested in the covariance and correlation for the following joint probability distributions. X -1 -0.5 0.5 1 y -2 -1 1 2 f xy x , y) 1/8 1/4 1/2 1/8 Applicable Formulas Use the formulas provided Hx = _ xf ( x, y Hy = Eyf ( x, y E XY ) = _ xyf ( x, ] above to compute the OF= E XY - Hx HY o? =Ex-Hx/f of = [ Y - HY f ( x following requirements. Express your results to 4 X N Op= VO OXY decimal places