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

For one-way frequency tables, PROC FREQ performs a chi-square goodness-of-fit test when you specify the CHISQ option ... A small right-sided p-value supports the alternative that the probability of an ...

Pearson's chi-square test works well with genetic data as long as there are enough expected values in each group. In the case of small samples (less than 10 in any category) that have 1 degree of ...