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 ...
JSTOR Daily

Formulae for the Expected Values of the Sampled Variance and Covariances from Series Generated by General Autoregressive Integrated Moving Average Processes of Order (p, d, q)

We provide formulae for the expected variances and autocovariances, given a time series realisation from any stationary or once integrated stationary mixed autoregressive moving average process, and ...
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 ...
MrExcel on MSN

Excel Tutorial: Calculating Variance Within Pivot Tables

Learn how to calculate and display variance inside Excel pivot tables. Perfect for financial analysis, reporting, and data ...