John Galt Solutions
Request Demo | Purchase | Contact |
Call Us 1-312-701-9026
John Galt University

John Galt University

Forecast Xpert Training

Methods & Statistics

White Papers

Glossary Terms

M3 Results

Education Partners

Business Forecasting Book

Resource Center






The Sum Squared Deviations (SS) is divided by the degrees of freedom associated with it to obtain the Mean Squared Deviation (MS). The sample variance is often called a mean square, because a sum of squares has been divided by the appropriate degrees of freedom.

Learn About John Galt

Free Stuff

Quick Links

In the News