Question: There are two alternative routes for a ship passage. The sailing times for the two routes are random variables X and Y that have

There are two alternative routes for a ship passage. The sailing times for the two routes are random variables X and Y that have the joint density function kry for 4 < T < 10, T 3 < y < 9 0 where k is a constant. (a) Find k. elsewhere (b) Find the marginal density function of Y. (c) Find > Y).

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