Chi Square Calculator

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Random variables in Statistics are used to give us categorical data and numerical data. Chi square in statistics is used to check how the distributions of categorical data are different from one another. Chi square is represented by the symbol ‘X2’ and Chi square calculator is the online tool useful in finding the chi square for any given distribution.

Example 1: Given below is the 2 x 2 contingency table.  Calculate Chi square statistic.




Degrees of freedom = (number of columns-1)*(number of rows-1) = (2-1)*(2-1)

(Not including the ‘Totals’ row and column)   Degrees of freedom = 1



Example 2: Given below is the 2 x 2 contingency table about performance of students in an exam.  Calculate Chi

square statistic.




Degrees of freedom = (number of columns-1)*(number of rows-1) = (2-1)*(2-1)

(Not including the ‘Totals’ row and column)

Degrees of freedom = 1

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