Question: 19. If X is a nonnegative random variable with mean 25, what can be said about: (a) E[X]; (b) E[X]; (c) E[log X]; (d) E[e

19. If X is a nonnegative random variable with mean 25, what can be said about:

(a) E[X³];

(b) E[√X];

(c) E[log X];

(d) E[e-X]?

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