Chi SquaredTeaching Chi Squared to a Stats class or AP Bio and not sure where to start?! Well, you found it. I created this product for my husband, who teaching AP Biology. This pack includes a PPT introduction, complete with student fill-in-the-blank notes, that walk students through the steps of Chi Squared and gives them a general overview of how and why we use this test. Degrees of Freedom are explained, as well as p-value. Notes provide an additional practice problem to do as a class. This