? Exercise 15.2.9 The joint density function for two random variables X and Y is given by f(x, y) = = 16250 (x² + y²) if 0 ≤ x ≤ 15 and 0 ≤ y ≤ 10 0 if otherwise Find the probability that X is at most 10 and Y is at least 5. 5.77 ► Hint

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