Categorical Data
Categorical data places information into groups (gender, zip code, numerical ranges)
Bar Graphs
Bar Graphs
Must have:
uniform width
y-axis labeled with categories
title
axes start at 0
Segmented Bar Graphs
Segmented Bar Graphs
Variation of bar graphs. Can use proportions or numbers.
Two-Way Tables
Two-Way Tables
Two-way tables consist of a marginal distribution: the row and column totals.
The joint-relative frequency is the proportion of individuals in a specific cell to the overall total.
Conditional distribution is the proportion of an individual cell to a marginal distribution total.