Chapter 3, Section 1 - Bimodal


Bimodal: A data set is bimodal if it has two modes. This occurs when two data values tie for having the highest frequency.

Personal Definition: when a set of data has two numbers that occur with the same frequency.


Example: Camp counselors are trying to find the average age of the campers in their group. The ages are as follows...

6,7,7,7,7,8,9,9,9,9,10,11

This set of data is bimodal because the most frequent number of the same age is 4, that number is shared by both ages 7 and 9. Two modes exist.







Bimodal Definition: http://statistics.about.com/od/Glossary/g/Bimodal.htm



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