A-level Biology Statistics - Everything you need to know 

Have paper 3 in like 3hrs and this somehow taught me everything big ups

thanks so much have my A2 2 paper tomorrow and statistics is the one thing i couldnt get my head wrapped round

Thank you so much this has really helped me to understand unit 6 biology all the best!

For chisquared critical value when it is less than P=0.05 isn't the results significant?

the examples made it much easier to understand

5:43 Sir you mentioned that degree of free dom is number of categories -2 right but why does equation say N1+N2 shouldn’t be 9+9 =18 then - 2 because you need number of categroes for each ph?

Very helpful Tan

Thank you sir! Short and to the point!! Very helpful!