An instructor has given a short quiz consisting of two parts. For a randomly selected student, let  X  = the number of points earned on the first part and  Y  = the number of points earned on the...

An instructor has given a short quiz consisting of two parts. For a randomly selected student, letX = the number of points earned on the first part andY = the number of points earned on the second part. Suppose that the joint pmf ofX andY is given in the accompanying table.
(a) Compute the covariance forX andY. (Round your answer to two decimal places.) Cov(X,Y) =  (b) Computeρ forX andY. (Round your answer to two decimal places.)
ρ =