(b) Let X and Y have joint probability density function fxx (,)= k, x>0, y > 0, x+y<1 0, otherwise. (i) Show that k = 2. (ii) Find the marginal probability density functions of X and Y. (iii) Find the conditional probability density functions fxx (xly) and fy|x (y|x).

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A:

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A:

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A:

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A:

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A:

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A: It is an important part of statistics. It is widely used.

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