This PowerPoint provides an overview and step-by-step method for calculating Chi-squared. It is illustrated with 3 examples, including one using contingency tables. The formula and notation used are in line with the AQA GCE Human Biology Students’ Statistics Sheet (version 2.2).


  • Chi_Squared_Test.ppt

About this resource


Created: Jul 27, 2012

Updated: Sep 24, 2014

Report a problem

24 Reviews

  • 5

    Thank you! A great resource!

  • 5

    awesome resource thank you very much

  • 4
    user avatarasantewaa6 months agoreport

    very clear and simple and you have not charged for it. thank you so much

  • 5
    user avatarsunil67827 months agoreport

    Excellent presentation. Usefull for everyone.

  • 5

    I can't describe how helpful your statistical analysis power points have been over the years!

    • user avatarSteveJ64Reply from Author4 months ago

      I am no longer teaching A level, so it's great to see these still being used on a regular basis