Statistics, Statistical Analysis, Random Variable, Discrete Random Variable, Mathematics.
more will be value of Var(X). Properties of Var and SD Var(aX)= a² Var(X) SD(aX)= |a| SD(X) Var(X+a)= Var(X) SD(X+a)= SD(X) Alternate Way of Writing variance Var(X)= E[X²]- E[X]² Standardised Random Variable A random variable X is said to be standardised if E[X] = 0, Var(X) =1. Let X be a random