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Pearson Chi-Square

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Revision as of 08:22, 13 June 2011 by Wikiadmin (talk | contribs)

<math>chi^2 = \sum_{ij} \frac {(f_{ij}-e_{ij})^2}{e_{ij}}</math> where <math> e_{ij}= \frac {(row i total)(column j total)}{n}</math>