State the formula of E(X) and E (X^ 2 ) for random variable X. - Vidyadip

Question

State the formula of $E(X)$ and $E\left(X^{2}\right)$ for random variable $X$.

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Answer

Formula for random variable $X$ is $E(X)=\sum x . p(x)$ and $E\left(X^{2}\right)=\sum x^{2} p(x)$

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