4.72 Consider the joint probability distribution: X 1 2 Y 0 0.25 0.25 1 0.25 0.25 a....

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4.72 Consider the joint probability distribution:

X 1 2 Y 0 0.25 0.25 1 0.25 0.25

a. Compute the marginal probability distributions for X and Y.

b. Compute the covariance and correlation for X and Y.

c. Compute the mean and variance for the linear function W = X + Y.

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Statistics For Business And Economics

ISBN: 9780273767060

8th Global Edition

Authors: Paul Newbold, Mr William Carlson, Ms Betty Thorne

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