What is a Frequency Table?
A frequency table is a table that shows how many times certain values occur in a data set.
A relative frequency table is a table that shows how many times certain values occur relative to all the observations in a data set.
Let’s walk through an example on how to construct both of these tables.
Example: Constructing Frequency Tables
Suppose we have the following data set:
To make a frequency table of the variable Favorite Color, we simply count how many times each color shows up:
For example, purple shows up 5 times and there are 20 total observations. This means the relative frequency of purple is 5/20 = 25%. We can do the same calculation for the other colors as well: