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Discrete Histogram

What is it?

A discrete histogram is a visualization of a categorical (factor) variable. It is a bar plot showing the number of times each category occurred.

Why do I care?

A discrete histogram contains the same information as a frequncy distribution, but it is easier to see the relative prevalence of each category “at a glance.”


The histogram below describes the industries represented by a collection of CEO’s (the 800 most highly paid CEO’s in 1994). Finance is heavily represented on this list, travel, transportation, and construction are not (but at least they made the list!).