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“Don’t be so MEAN!”. Words spoken by an AVERAGE man. Huh?. Average. A number that typifies a set of numbers of which it is a function. Huh?. Mean. The average value of a set of numbers. Huh?. Average=Mean. The average is the mean. The mean is the average. Let’s try it this way.

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## “Don’t be so MEAN!”

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**“Don’t be so MEAN!”**Words spoken by an AVERAGE man.**Huh?**Average • A number that typifies a set of numbers of which it is a function.**Huh?**Mean • The average value of a set of numbers.**Huh?**Average=Mean • The average is the mean. • The mean is the average.**Let’s try it this way.**• The average (or mean) of data is computed by • 1. Adding all the data together (sum). • 2. Dividing that sum by the number of data. • 5 + 10 + 2 + 7 = 24 • 24 ÷ 4 = 6 • So the average number of rocks collected was 6.**Here’s another example.**• 3 + 2 + 10 + 6 + 4 =25 • 25 ÷ 5 = 5 • So the average number of fish owned by members of the Aqua club was 5.**You can find the average of your test grades.**• 90 + 85 + 82 + 100 + 100 + 86 = 543 • 543 ÷ 6 = 90.5 • So the average of Sam’s spelling grades is 90.5 which is rounded up to 91 which is an A.**Find the average of this data.**The average rainfall during these three weeks was 4 inches.**Find the average of this data.**The average number of CDs owned by the members of the Hip Hop Club’s members is 20.**Find the average of this data.**There is an average of 15 of each genre in the classroom library.**Find the average of this data.**Mr. Postman has an average of 9.5 of each kind of tie.**Last one!**These states have an average of 9.6 cities with a population of over 100,000.

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