


Description 



Frequency: The number of times an item, number, or event occurs in a set of data. 
"gender," you would count the number of males in your data set  this would be the frequency of
males. Then you could count the number of females in your data set, giving you
the frequency of females.
The frequencies of a variable can be displayed
using a frequency table.
For example, in creating a frequency table of the
quality ratings of natural peanut butter, the following data was
collected:
Quality Rating
 34.00 
40.00 
52.00 
57.00 
57.00 
60.00 
60.00 
63.00 
67.00 
69.00 
69.00 
69.00 
71.00 
89.00 
Then, the frequencies were computed by counting
the number of quality ratings for each range.
Example frequency table:
Range Quality Ratings 
Number in Range (frequency) 
3039 
1 
4049 
1 
5059 
3 
6069 
7 
7079 
1 
8089 
1 
And that is all there is to creating a frequency table. Often,
though, a frequency table is used simply as a stepping stone for creating other
representations (line plots, stemandleaf plots, and histograms) of the same type of
data.


