A chi-square (χ2) statistic is a test that is used to measure how expectations compare to actual observed data or model ...

A statistical test that allows one to determine whether observed quantities of a specific characteristic differed from the expected value purely by chance.

R is the perfect language for creating a variety of chi-square tests, which are used to perform statistical analyses of counts of data. Here's how, with some sample code. A chi-square test (also ...

The Canadian Journal of Statistics / La Revue Canadienne de Statistique A modified chi-square test statistic is constructed for testing the hypothesis of independence in a two-way contingency table ...

A modified form of the Pearson χ 2 test statistic is considered where estimators based on the ungrouped sample are employed in the test statistic as well as in determining the class interval end ...