Probability

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Question : 33 of 127

Marks: +1, -0

If

x

and yare independent, then

$E(x y)=E(x) × E(y)$
$E(x y)=E(x)+E(y)$
$E(x+y)=E(x)+E(y)$
$E(x-y)=E(x)-x E(y)$

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