Hello!(adsbygoogle = window.adsbygoogle || []).push({});

While conducting chi square -tests I asked my teacher what the "square" means, and why it was there? Why chi squared, and not just chi?

He couldn't give an answer so he told me to find out, as a homework :surprise: ... After a quarter of "Googeling" I gave up.

So, is there anyone out there who knows why there is a square in chi square??

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Chi square is useful - but why square?

**Physics Forums | Science Articles, Homework Help, Discussion**