Chi Squared Test Values. See chi square test page for more details. χ 2 σ o e 2 e.
Subtract each expected frequency from the related observed frequency. See chi square test page for more details. For example for the c g p a category.
A chi squared test also written as χ 2 test is a statistical hypothesis test that is valid to perform when the test statistic is chi squared distributed under the null hypothesis specifically pearson s chi squared test and variants thereof.
Values of the chi squared distribution. χ 2 σ o e 2 e. The rest of the calculation is difficult so either look it up in a table or use the chi square calculator. See chi square test page for more details.