1. ## Chi-square

In a chi-square test, what does it indicate when the observed and expected frequencies are equal?

Besides the sum=0, does it mean anything else?

2. Originally Posted by dwsmith
In a chi-square test, what does it indicate when the observed and expected frequencies are equal?

Besides the sum=0, does it mean anything else?
It means that you have a perfect fit of the observed to expected - usually this is indicative of fraud.

CB