For the following joint pdf, find: (a) E[X], (b) E[XY], (c) Cov(X, Y). x f(x,y) 5.1 5.9 6.7 1.1 0.08 0.15 0.09 1.4 0.1 $0.11 0.12 1.7 0.13 0.14 0.08 Y

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