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Course: Statistics and probability > Unit 3
Lesson 1: Measuring center in quantitative dataStatistics intro: Mean, median, & mode
The mean (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set. The median is the middle value when a data set is ordered from least to greatest. The mode is the number that occurs most often in a data set. Created by Sal Khan.
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