Chapter 5: Representing and Analyzing Relationships between Categorical Variables.

How can we analyze the relationship between gender and study program? Or between four treatments and the outcome in patients? These are examples of categorical variables.

This chapter introduces the concept of contingency table (aka two-way table), a common device used to analyze the relationship between categorical variables.

This chapter also offers a foundation on classic probability and how probabilities are used to analyze the relationship between two categorical variables as observed in a contingency table.

The handout:  Chapter 5: Analyzing and Representing Relationships between Categorical Variables.

The online lesson: