Home > Mathematics > Arithmetic Mean, Variance and Standard Deviation of a Random Variable DistributionArithmetic Mean, Variance and Standard Deviation of a Random Variable Distribution Suppose the random variable distribution of a random variable X is as follows:X = xi P(x = xi) x1 x2 x3 . . . xn P1 P2 P3 . . . PnThen, Arithmetic Mean μ =Variance σ2 =Standard Deviation σ = Subscribe to Get Latest Updates Tweet Pin It Tags:EAMCET, Probability Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Name (required)Email (required)WebsiteSave my name, email, and website in this browser for the next time I comment.