Question: The random variable X has density f that satisfies on the real numbers. (a) Find P(X >1). (b) Show that the expectation of X does

The random variable X has density f that satisfies 

f(r) x 1+x?

on the real numbers.
(a) Find P(X >1).
(b) Show that the expectation of X does not exist.

f(r) x 1+x?

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