Choose Index below for a list of all words and phrases defined in this glossary.
Degree of Freedom - Degrees of freedom are the equivalent of currency in statistics - you earn a degree of freedom for every data point you collect, and you spend a degree of freedom for each parameter you estimate. Since you ususally need to spend 1 just to calculate the mean, you then are left with n-1 (total data points "n" - 1 spent on calculating the mean).
[Category=Data Quality ]
Source: iSixSigma, 15 January 2011 07:53:47, https:web.archive.org/web/20111109014246/http:www.isixsigma.com/index.php?option=com_glossary
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DF (degrees of freedom) - (#rows - 1)(#cols - 1)
[Category=Data Quality ]
Source: iSixSigma, 16 January 2011 10:55:34, https:web.archive.org/web/20111109014246/http:www.isixsigma.com/index.php?option=com_glossary
Data Quality Glossary. A free resource from GRC Data Intelligence. For comments, questions or feedback: dqglossary@grcdi.nl