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 ...

output out=chisqdat pchi lrchi n nmiss; title 'Chi-Square Tests for 3 by 5 Table of Eye and Hair Color'; run; proc print data=chisqdat noobs; title 'Chi-Square Statistics for Eye and Hair Color'; ...

computes a chi-square goodness-of-fit test for specified proportions. The chi-square goodness-of-fit test examines whether the children's hair color has a specified multinomial distribution for two ...

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