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**Mean, Median, Mode & Range**

By Monica Yuskaitis

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**Copyright © 2000 by Monica Yuskaitis**

Vocabulary Review Sum – the answer to an addition problem. Addend – the numbers you added together to get the sum. 6 + 9 = 15 Copyright © 2000 by Monica Yuskaitis

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**Copyright © 2000 by Monica Yuskaitis**

Definition Mean Means Average Copyright © 2000 by Monica Yuskaitis

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**Copyright © 2000 by Monica Yuskaitis**

Definition Mean – the average of a group of numbers. 2, 5, 2, 1, 5 Mean = 3 Copyright © 2000 by Monica Yuskaitis

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

2, 5, 2, 1, 5 Copyright © 2000 by Monica Yuskaitis

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

2, 5, 2, 1, 5 Copyright © 2000 by Monica Yuskaitis

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

2, 5, 2, 1, 5 mean = 3 Copyright © 2000 by Monica Yuskaitis

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**How to Find the Mean of a Group of Numbers**

Step 1 – Add all the numbers. 8, 10, 12, 18, 22, 26 = 96 Copyright © 2000 by Monica Yuskaitis

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**How to Find the Mean of a Group of Numbers**

Step 2 – Divide the sum by the number of addends. 8, 10, 12, 18, 22, 26 = 96 How many addends are there? Copyright © 2000 by Monica Yuskaitis

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**How to Find the Mean of a Group of Numbers**

Step 2 – Divide the sum by the number of addends. 1 6 6) 96 # of addends sum 6 3 6 3 6 Copyright © 2000 by Monica Yuskaitis

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**How to Find the Mean of a Group of Numbers**

The mean or average of these numbers is 16. 8, 10, 12, 18, 22, 26 Copyright © 2000 by Monica Yuskaitis

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

7, 10, 16 11 Copyright © 2000 by Monica Yuskaitis

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

2, 9, 14, 27 13 Copyright © 2000 by Monica Yuskaitis

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

1, 2, 7, 11, 19 8 Copyright © 2000 by Monica Yuskaitis

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

26, 33, 41, 52 38 Copyright © 2000 by Monica Yuskaitis

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**Copyright © 2000 by Monica Yuskaitis**

Definition Median is in the Middle Copyright © 2000 by Monica Yuskaitis

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**Copyright © 2000 by Monica Yuskaitis**

Definition Median – the middle number in a set of ordered numbers. 1, 3, 7, 10, 13 Median = 7 Copyright © 2000 by Monica Yuskaitis

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**How to Find the Median in a Group of Numbers**

Step 1 – Arrange the numbers in order from least to greatest. 21, 18, 24, 19, 27 18, 19, 21, 24, 27 Copyright © 2000 by Monica Yuskaitis

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**How to Find the Median in a Group of Numbers**

Step 2 – Find the middle number. 21, 18, 24, 19, 27 18, 19, 21, 24, 27 Copyright © 2000 by Monica Yuskaitis

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**How to Find the Median in a Group of Numbers**

Step 2 – Find the middle number. 18, 19, 21, 24, 27 This is your median number. Copyright © 2000 by Monica Yuskaitis

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**How to Find the Median in a Group of Numbers**

Step 3 – If there are two middle numbers, find the mean of these two numbers. 18, 19, 21, 25, 27, 28 Copyright © 2000 by Monica Yuskaitis

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**How to Find the Median in a Group of Numbers**

Step 3 – If there are two middle numbers, find the mean of these two numbers. 46 = median 23 2) 46 Copyright © 2000 by Monica Yuskaitis

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

16, 10, 7 7, 10, 16 10 Copyright © 2000 by Monica Yuskaitis

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

29, 8, 4, 11, 19 4, 8, 11, 19, 29 11 Copyright © 2000 by Monica Yuskaitis

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

31, 7, 2, 12, 14, 19 2, 7, 12, 14, 19, 31 13 2) = 26 26 Copyright © 2000 by Monica Yuskaitis

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

53, 5, 81, 67, 25, 78 5, 25, 53, 67, 78, 81 60 2) = 120 120 Copyright © 2000 by Monica Yuskaitis

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**Copyright © 2000 by Monica Yuskaitis**

Definition Mode is the most Popular Copyright © 2000 by Monica Yuskaitis

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**Copyright © 2000 by Monica Yuskaitis**

Definition A la mode – the most popular or that which is in fashion. Baseball caps are a la mode today. Copyright © 2000 by Monica Yuskaitis

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**Copyright © 2000 by Monica Yuskaitis**

Definition Mode – the number that appears most frequently in a set of numbers. 1, 1, 3, 7, 10, 13 Mode = 1 Copyright © 2000 by Monica Yuskaitis

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**How to Find the Mode in a Group of Numbers**

Step 1 – Arrange the numbers in order from least to greatest. 21, 18, 24, 19, 18 18, 18, 19, 21, 24 Copyright © 2000 by Monica Yuskaitis

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**How to Find the Mode in a Group of Numbers**

Step 2 – Find the number that is repeated the most. 21, 18, 24, 19, 18 18, 18, 19, 21, 24 Copyright © 2000 by Monica Yuskaitis

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**Which number is the mode?**

29, 8, 4, 8, 19 4, 8, 8, 19, 29 8 Copyright © 2000 by Monica Yuskaitis

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**Which number is the mode?**

1, 2, 2, 9, 9, 4, 9, 10 1, 2, 2, 4, 9, 9, 9, 10 9 Copyright © 2000 by Monica Yuskaitis

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**Which number is the mode?**

22, 21, 27, 31, 21, 32 21, 21, 22, 27, 31, 32 21 Copyright © 2000 by Monica Yuskaitis

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**Copyright © 2000 by Monica Yuskaitis**

Definition Range is the distance Between Copyright © 2000 by Monica Yuskaitis

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**Copyright © 2000 by Monica Yuskaitis**

Definition Range – the difference between the greatest and the least value in a set of numbers. 1, 1, 3, 7, 10, 13 Range = 12 Copyright © 2000 by Monica Yuskaitis

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**How to Find the Range in a Group of Numbers**

Step 1 – Arrange the numbers in order from least to greatest. 21, 18, 24, 19, 27 18, 19, 21, 24, 27 Copyright © 2000 by Monica Yuskaitis

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**How to Find the Range in a Group of Numbers**

Step 2 – Find the lowest and highest numbers. 21, 18, 24, 19, 27 18, 19, 21, 24, 27 Copyright © 2000 by Monica Yuskaitis

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**How to Find the Range in a Group of Numbers**

Step 3 – Find the difference between these 2 numbers. 18, 19, 21, 24, 27 27 – 18 = 9 The range is 9 Copyright © 2000 by Monica Yuskaitis

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**Copyright © 2000 by Monica Yuskaitis**

What is the range? 29, 8, 4, 8, 19 4, 8, 8, 19, 29 29 – 4 = 25 Copyright © 2000 by Monica Yuskaitis

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**Copyright © 2000 by Monica Yuskaitis**

What is the range? 22, 21, 27, 31, 21, 32 21, 21, 22, 27, 31, 32 32 – 21 = 11 Copyright © 2000 by Monica Yuskaitis

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**Copyright © 2000 by Monica Yuskaitis**

What is the range? 31, 8, 3, 11, 19 3, 8, 11, 19, 31 31 – 3 = 28 Copyright © 2000 by Monica Yuskaitis

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**Copyright © 2000 by Monica Yuskaitis**

What is the range? 23, 7, 9, 41, 19 7, 9, 23, 19, 41 41 – 7 = 34 Copyright © 2000 by Monica Yuskaitis

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**Copyright © 2000 by Monica Yuskaitis**

Credits Clipart from ClickArt 125,000, T/Maker Company of Broderbund Software, Inc. Copyright © 2000 by Monica Yuskaitis

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**Copyright © 2000 by Monica Yuskaitis**

Credits Clipart from ClickArt 125,000, T/Maker Company of Broderbund Software, Inc. Copyright © 2000 by Monica Yuskaitis

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