# what do you know about chi square test

May 17, 2024

**One of the main things in stats while coming to testing is chi square test.**

The **chi-square test** is a statistical method used to determine if there is a significant association between two categorical variables.

It’s commonly applied in hypothesis testing to see if observed data differs significantly from what we would expect under a given **hypothesis**.

There are two main types of chi-square tests: the **Chi-Square Test** for Independence and the** Chi-Square Goodness of Fit Test.**

# Chi-Square Test for Independence

This test is used when you have two categorical variables from a single population and want to see if there is a significant association between them.