Question: (From Section 7.1, Exercises 4 and 8) For the following joint distributions, find the covariance of X and Y using the direct method, If the

(From Section 7.1, Exercises 4 and 8)
(From Section 7.1, Exercises 4 and 8)For the following joint

For the following joint distributions, find the covariance of X and Y using the direct method,

(From Section 7.1, Exercises 4 and 8)For the following joint

If the covariance is zero, are the random variables independent?

=1 0.05 0.04 0.01 Y=2 0.1 0.08 0.02 =3 0.35 0.28 0.07 Cov(X, Y)=E[ (X-X)(Y-Y)]

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