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Mean, Median, Mode, and Range

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**Mean is found by evening out the numbers**

2, 5, 2, 1, 5

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**Mean is found by evening out the numbers**

2, 5, 2, 1, 5

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**Mean is found by evening out the numbers**

2, 5, 2, 1, 5 mean = 3

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**Mean is the average of a set of data**

Mean is the average of a set of data. To calculate the mean, find the sum of the data and then divide by the number of data.

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Mean 12, 15, 11, 11, 7, 12 First, find the sum of the data. = 68 Then divide by the number of data. 68 / 6 = 12 The mean is 12

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**You can remember that “mean” means to average because the “mean teacher averages your grade.”**

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**Reorder from least to greatest**

What is the median? The middle number in the set of data when written “in order” (first step we do) Given: 14, 28, 0, 1, 1 Reorder from least to greatest 0, 1, 1, 14, 28 The middle number is 1

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**Divide by 2. What is your median?**

What if you have an even set of numbers? Given: 10, 0, 20, 30 Reorder from least to greatest 0, 10, 20, 30 Add the two middle numbers together. Divide by 2. What is your median? 15

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Definition Median is in the Middle

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**What is the median of these numbers?**

16, 10, 7 7, 10, 16 10

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**Mode Mode: the number that appears the most often.**

A family has children aged 3, 4, 5, 3, 1. 3 appears twice, the other numbers only once. 3 is the mode.

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What is the mode? 1, 1, 2, 2, 3, 3, 4, 4 There is NO mode

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**Can there be more than one mode?**

1, 2, 2, 2, 3, 3, 4, 4, 4 Yes, there are two modes. What are they? 2 and 4

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You can remember that mode means the number that occurs the most because “mode” and “most” sound alike!

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**Range – the difference between the greatest and the least value in a set of numbers.**

1, 1, 3, 7, 10, 13 Range = 12

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**Range = 29 First put the numbers in order from smallest to greatest.**

40, 30, 43, 48, 26, 47, and 50 To find the range you would take the largest number, 50, and subtract the smallest number, 26. 55 – 26 = 29 Range = 29

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**Match Average Middle Most Frequent Difference Mode Range Median Mean**

Directions: Use the pen feature of Power Point to match each word in the left column with the correct term on the right. Match Average Middle Most Frequent Difference Mode Range Median Mean

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**The number that occurs most Mode**

Mean The average Median The number or average of the numbers in the middle The difference between the greatest and smallest value Range The number that occurs most Mode

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Did You Know… That you probably use statistics such as mean, median, mode and range almost every day without even realizing it?!?

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Mean, Median, Mode, and Range Nate Basalyga. Mean The mean is the average of your group set of numbers When finding the mean, you add up each number in.

Mean, Median, Mode, and Range Nate Basalyga. Mean The mean is the average of your group set of numbers When finding the mean, you add up each number in.

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