Question: I I I 19. X is a discrete uniform variable on {a, a+ 1, ..., b} with mean 21 and variance 24. a. Find a

\\I I I 19. X is a discrete uniform variable on

\\I I I 19. X is a discrete uniform variable on {a, a+ 1, ..., b} with mean 21 and variance 24. a. Find a and b b. Find P[X 15]

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