This article was originally published on Built In by Eric Kleppen. Variance is a powerful statistic used in data analysis and machine learning. It is one of the four main measures of variability along ...

Variance is a statistical calculation that numerically describes the amount of variation in a data set. If values in a data set wildly fluctuate, variance would be high and predictions based on the ...

Marshall Hargrave is a stock analyst and writer with 10+ years of experience covering stocks and markets, as well as analyzing and valuing companies. Dr. JeFreda R. Brown is a financial consultant, ...

Sankhyā: The Indian Journal of Statistics, Series B (1960-2002), Vol. 50, No. 3 (Dec., 1988), pp. 382-393 (12 pages) To improve estimation of strata variances when strata sample sizes are small, a new ...