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®, X and Y are two random variables denoting the proportions of time during which employees I and II work on a weekday respectively. The joint density of X and Y is x+y, İf 0 < x < 1, 0<y<1, 0, esewhere. (a) Find P(XY Hint: Definition of conditional probability: P(AB)- P(AnB)/P(B) (b) Find P(XY)

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후 ei-Aho ,,..ac.、,。.. 1. 3 1. +노

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