Chi-squared test for association (IB Biology) 

I want to cry

best channel ever!

Every ib bio teacher ever: Ull never have to calculate chi squared it’ll only be mcq ☺️👍 May 22 exam: gets four mark chi squared question 😑

I'm not sure if you'll see this comment, but I was wondering if you could go more in depth as to why you multiply the column and row totals and divide by the full number. We had a large debate/ discussion in class about why the formula actually works and never came up with a conclusion.

Good job!

Wow nice

i understand it， thanks alot

thanks!

thank uuu

Exactly!! the new spiderman guy(tom holland) is cool haha

nice

NANI