Question: Let the pmf of X be defined by f(x) = 6/(2x2), x = 1, 2, 3, . . .. Show that E(X) = + and

Let the pmf of X be defined by f(x) = 6/(π2x2), x = 1, 2, 3, . . .. Show that E(X) = +∞ and thus, does not exist.

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