# Answer to Question #86840 in Electrical Engineering for Anand

Question #86840

Let X be a random variable with density function f(x)= 2/x³ if ≥1 , f(x)= 0 otherwise

Show that E(X) exists and E(X) = 2 but Var(X) does not exist.

Show that E(X) exists and E(X) = 2 but Var(X) does not exist.

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