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All of question 1 1. Let X and Y have the joint pmf f ( x, y) = . = 1,2, y = 1, 2,

All of question 1

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1. Let X and Y have the joint pmf f ( x, y) = . = 1,2, y = 1, 2, 3, 4. 32 1.1. Find the marginal pmf of X. 1.2. Find the marginal pmf of Y. 1.3. Find the covariance of X and Y. 1.4. Find the correlation coefficient of X and Y

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