Variance of Random Variable | Probability theory
For discrete RV X, the variance is written as Var( X) = E[(X-m)2] where m = Expected value of X
Another formula for Var(X) = E[X2] βm2






For discrete RV X, the variance is written as Var( X) = E[(X-m)2] where m = Expected value of X
Another formula for Var(X) = E[X2] βm2






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