Question: Let X and Y be random variables with finite second moments and finite joint moments. Show that (E[XY] )? Let X and Y be random

Let X and Y be random variables with finite second moments and

Let X and Y be random variables with finite second moments and finite joint moments. Show that (E[XY] )?

Let X and Y be random variables with finite second moments and finite joint moments. Show that [Hint: Let Z (X aY)2 then find E[Z]. Eventually, replace a by some appropriate term.]

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