Focus - Chi Squared

IB Maths Studies: Focus - Chi Squared

The chi squared independence tests is a widely used technique for looking for a relationship between variables that are categorical. We can use a scatter graph to look for a relationship between GDP and life expectancy, but what about GDP and Continent? We cant put continent on a numerical axis. This tool gives us many new options and is an excellent bit of mathematics.Independence Day ​This is a great thinking exercise...


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Comments 3

Lesley Twiss 17 August 2017 - 00:35

Are the summary slides somewhere that I can download them so I can tweak them for my class?

Jim Noble 23 August 2017 - 18:14

Hi Lesley - not for now, just playable through the website..... out of interest, if they were downloadable, what format would you choose?

MA. Rhosezal Torcuator 13 September 2017 - 07:10

Hi! Could we have it in pdf or ppt file? thank you


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