Changes

*The test statistic is:

*The test statistic is:

<math>\chi^2=\sum\frac{(Oi-Ei)^2}{Ei}</math>

<math>\chi^2=\sum\frac{(Oi-Ei)^2}{Ei}</math>

The degrees of freedom is <math> (r–1)(c–1)</math>

The degrees of freedom is: (r–1)(c–1)

*r = No. of rows

*r = No. of rows

*c = No. of columns

*c = No. of columns