STAB22H3 Chapter Notes - Chapter 3: Bar Chart, Contingency Table, Marginal Distribution

• School: UTSC
• Department: Statistics
• Course: STAB22H3
• Professor: Mahinda Samarakoon

Document Summary

Frequency table (relative frequency table): a frequency table lists the categories in a categorical variable and gives the count (or percentage) of observations for each category. Distribution: the distribution of a variable gives - the possible values of the variable and the relative e frequency of each value. Area principle: in a statistical display, each data value should be represented by the same amount of area. Bar chart (relative frequency bar chart): bar charts show a bar whose area represents the count (or percentage) of observations for each category of a categorical variable. Pie chart: pie charts show how a whole divided into categories by showing wedges of a circle who"s area corresponds to the proportion in each category. Categorical data condition: the methods in this chapter are appropriate for displaying and describing categorical data. Be careful not to use them with quantitative data.