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X1 9. (8 points) The random vector X = has density function X2 (2ac7 + 25 + 2ac1202 - 22x1 - 14x2 + 65) },

X1 9. (8 points) The random vector X = has density function X2 (2ac7 + 25 + 2ac1202 - 22x1 - 14x2 + 65) }, (x1, 2)' ER2 f (x1, 202) = 2T expl- Calculate E(X ) and cov( X)

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