Investopedia

What Is Variance in Statistics? Definition, Formula, and Example

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...
Investopedia

Standard Deviation Formula and Uses, vs. Variance

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, ...
JSTOR Daily

Maximum Likelihood Estimation of a Linear Regression Function with Grouped Data

Journal of the Royal Statistical Society. Series C (Applied Statistics), Vol. 21, No. 2 (1972), pp. 142-154 (13 pages) When the data in a linear regression problem come in grouped form, finding the ...
JSTOR Daily

On the Estimation of the Correlation Coefficient from Grouped Data

This article proposes two estimators of the correlation coefficient, ρ, when statisticians will not construct a master file on individuals because of confidentiality issues. The approach depends on ...