Chi-Square Test [Simply explained]

The chi-square test is a hypothesis test used for categorical variables with nominal or ordinal measurement scale. The chi-square test checks whether the frequencies occurring in the sample differ significantly from the frequencies one would expect. Thus, the observed frequencies are compared with the expected frequencies in the Chi2-Test and their deviations are examined.

Chi-Square test calculator:

More Information about the Chi-Square test:

Chi-squared distribution:

[akackon]

For those wondering how to get the expected frequencies:
For each cell
((Sum of row)*(Sum of columns))/Total number of observations

[krishnaiahkonda]

Chi-Square Test is a hypothetical test to determine the relationship between two categorical variables like gender and highest qualification. Well explained with online and offline examples. Thank you DATAtab.

[omardiaaeldessouky]

I love explaining concepts well and marketing for the product in the same time. Very creative and informative approach :)

[zohrehschuessler]

You are one of the best statisticians I have known via YouTube.

[anujsangal]

The best explanation of Chi square test by a software company

[markfidelix]

By far the best quick video I've seen about the Chi-square test!

[thabangramashapa]

This video might've helped me obtain my qualification, thank you!!!

[marcelmaurice]

Excellant tutorial without irrelevant peripheral presenter's ego.
Could categorical variables be equated to discrete variables?

[GabriPMorgan]

Thank you, this is what I was needing exactly for my PhD.

[asma]

What a clear explanation. Thank you.You are helping many..👏👏🙏

[Vivek-npvm]

Thank you so much for the calculator. This is exactly what I was looking for. Love from India.

[notabotbutarealperson]

I passed my whole test thanks to this one video.

[angneatb]

This is wonderful! so simple and to the point.

[germanslobo]

Amazing explanation! So simple and easy to understand. Thanks.

[shadialhag]

Thank you very much for the wonderful way of explaining this topic, is there a video on SPSS topic.

[dstan]

Thank you for the video! Finally understood the concept.

[Griffindor]

Great explanation👍👍, but....what was the null hypothesis in the first place?

[dr]

Consider that this is the ChiSq test of independence.
There are other chisq tests like chisquare test for variance, chi-sq test for goodness of fit, etc.

[rayday]

Amazing video, you have explained everything very well

[PediaTricks]

Simplest video explanation on chi square test. Thanks