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**Mean, Median, Mode, and Range**

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**Measures of Central Tendency**

Circle the measures of central tendency below. (Hint: There are only 3 measures of central tendency.) Mode Mean Range Median

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**outlier What’s an outlier?!**

out- pref. In a way that surpasses, exceeds, or goes beyond: outdistance. -er suff. One that undergoes a specified action: broiler. –noun 1. a person or thing that lies outside. outlier lie verb. to be found or located in a particular area or place: The fault lies here. number

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Find the outlier(s) 12, 22, 40, 17, 29, 72, 38 90, 80, 75, 7, 67, 82 101, 210, 184, 18, 156, 989, 204

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Matching! Mean Middle Median Difference Mode Most Average Range

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**13 6 7 Problem 1 Mean = 9 Median = 7 Mode = 6 and 13 Range = 7**

Children Ages Harry 13 Ron 6 Hermione 7 Ginny Neville Mean = 9 Median = 7 Mode = 6 and 13 Range = 7

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**Problem 2 13 7 17 19 15 11 Mean = 12 Median = 12 Mode = 7 Range = 12**

Homerooms Pizza Orders Everdeen 13 Mellark 7 Abernathy 17 Snow 19 Coin Hawthorne 15 Trinket 11 Crane Mean = 12 Median = 12 Mode = 7 Range = 12

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**Visitors to the Art Museum (thousands)**

Problem 3 Visitors to the Art Museum (thousands) Mean = 5,000 Median = 4,000 Mode = 3,000 Range = 10,000

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**2 6 5 4 3 0 1 Problem 4 Snowfall in Inches Mean 3 inches Median Mode**

Mean 3 inches Median Mode none Range 6 inches

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**Summary of the Measures of Central Tendency**

Best used to describe data when… Mean The data has no outliers Median The data has outliers Mode The data has many repeated numbers

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