Chi-Square Calculator

The Chi-Square statistic aids in the assessment of the null hypothesis that the frequencies of each category deviate from one another in the way observed purely by chance. Alternatively, there is a rhyme and reason to the present deviations. Depending on the Chi-Square statistic calculated, we can reject or not reject the null hypothesis. Provide this calculator with a number of categories of interest and then supply it with some observed frequencies per category. The calculator will produce the Chi-Square and its interpretaion.

O = observed frequency

E = expected frequency

O E O-E (O-E)2* (O-E)2/E*


If you've found a bug, or would like to contact us please click here.

Calculate.co.nz is partnered with Interest.co.nz for New Zealand's highest quality calculators and financial analysis.

Looking for an ethical KiwiSaver? Go to mindfulmoney.nz – it’s quick, easy and free.

Copyright © 2019 calculate.co.nz All Rights Reserved. No part of this website, source code, or any of the tools shall be copied, taken or used without the permission of the owner. All calculators and tools on this website are made for educational and indicative use only. Calculate.co.nz is part of the GST Calculator, PAYE Calculator and CGT Calculator group.