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Hi, please help me with this question. A small amount of working out would be appreciated. For the following pmf, calculate E(XY) (to 2dp) X

Hi, please help me with this question. A small amount of working out would be appreciated.

For the following pmf, calculate E(XY) (to 2dp) X Py(y) -1 0 0 0.05 0.1 0.05 0.2 2 0.15 0.25 0 0.4 3 0.05 0.05 0.3 0.4 Px(x) 0.25 0.4 0.35 1

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