Chapter 3 - Displaying and Describing Categorical Data

Chapter 3 - Displaying and Describing Categorical Data

1. Frecuency Table

   • lists the categories in a categorical variable and gives the count (or percentage of observations for each category

2. Bar chart

   • Segmented
     • Displays the conditional distribution of a categorical variable within each category of another variable.
   • Bar charts show a bar whose area represents the count (or percentage) of observations for each category of a categorical variable.

3. Pie Chart

   • Pie charts show how a “whole” divides into categories by showing a wedge of a circle whose area corresponds to the proportion in each category

4. Contingency table

   • A contingency table displays counts and, sometimes, percentages of individuals falling into named categories on two or more variables