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Chapter 1: Introduction and Graphical Displays
Definition: Categorical or Qualitative Frequency Distribution
A categorical or qualitative frequency distribution is a frequency distribution
which represents data that can be placed into naturally occurring categories,
such as ethnicity, college classification, political affiliation, gender etc.
Following is an example which deals with a categorical or quantitative
frequency distribution.
Example 1-1:
The grade distribution for a statistics class is given below.
Summarize the data using a frequency distribution.
Solution:
We will represent the grades as the different classes and the
number of occurrences for each grade as frequencies. The frequency table
(distribution) in
Table 1-1
summarizes the data.
Table 1-1:
Frequency Table for
Example 1-1