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Web-Based Statistical Calculators

The following are links to statistical calculators useful in determing the likelihood of reported percentages being significant or due to random chance.

These calculators require that your web-browser supports tables and JavaScript-based functions. The field at the bottom of the page will confirm whether or not you currently have JavaScript enabled.

To determine difference of proportion, please follow the link to MSR's calculator:

Difference of Proportion Calculator


If you need to calculate Chi-Square, we recommend the free chi-square calculator page at the Georgetown University website:

Chi-Square Calculator


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