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MATH 225 Week 3 Measures of Central Tendency Notes

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August 7, 2025
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  • math 225 week 3

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MATH225

Measures of Central Tendency
A measure of central tendency is a value that represents a typical, or central entry
of a data set.


I. Mean (commonly referred to as the Average)
Data set is the sum of the data entries divided by the number of entries.




Example: Find the mean of: 10, 7, 15, 6, 24, 20, 1

x = 11.86


Example: The heights (in inches) of the players on the 2009-2010 Cleveland
Cavaliers basketball team are listed. What is the mean height?




M = 79.5 inches




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