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 ...

The Journal of Business & Economic Statistics (JBES) has been published quarterly since 1983 by the American Statistical Association. It serves as a unique meeting place for applied economists, ...

Steven Nickolas is a writer and has 10+ years of experience working as a consultant to retail and institutional investors. Portfolio variance is a measure of the dispersion of returns of a portfolio.

This is a preview. Log in through your library . Abstract This paper develops explicit closed formulas for the covariances of order statistics in samples from the extreme-value distribution which ...