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Презентация была опубликована 2 года назад пользователемЕвгения Хомякова

1 Mean, Median, Mode & Range By Monica Yuskaitis

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

3 Copyright © 2000 by Monica Yuskaitis Definition Mean Means Average

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

5 Copyright © 2000 by Monica Yuskaitis Mean is found by evening out the numbers 2, 5, 2, 1, 5

6 Copyright © 2000 by Monica Yuskaitis Mean is found by evening out the numbers 2, 5, 2, 1, 5

7 Copyright © 2000 by Monica Yuskaitis Mean is found by evening out the numbers 2, 5, 2, 1, 5 mean = 3

8 Copyright © 2000 by Monica Yuskaitis How to Find the Mean of a Group of Numbers Step 1 – Add all the numbers. 8, 10, 12, 18, 22, = 96

9 Copyright © 2000 by Monica Yuskaitis 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, = 96 How many addends are there?

10 Copyright © 2000 by Monica Yuskaitis How to Find the Mean of a Group of Numbers Step 2 – Divide the sum by the number of addends. 6)6) 96 sum# of addends

11 Copyright © 2000 by Monica Yuskaitis 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

12 Copyright © 2000 by Monica Yuskaitis What is the mean of these numbers? 7, 10, 16 11

13 Copyright © 2000 by Monica Yuskaitis What is the mean of these numbers? 2, 9, 14, 27 13

14 Copyright © 2000 by Monica Yuskaitis What is the mean of these numbers? 1, 2, 7, 11, 19 8

15 Copyright © 2000 by Monica Yuskaitis What is the mean of these numbers? 26, 33, 41, 52 38

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

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

18 Copyright © 2000 by Monica Yuskaitis 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

19 Copyright © 2000 by Monica Yuskaitis 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

20 Copyright © 2000 by Monica Yuskaitis 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.

21 Copyright © 2000 by Monica Yuskaitis 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

22 Copyright © 2000 by Monica Yuskaitis 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 2)2) 23 median

23 Copyright © 2000 by Monica Yuskaitis What is the median of these numbers? 16, 10, , 10, 16

24 Copyright © 2000 by Monica Yuskaitis What is the median of these numbers? 29, 8, 4, 11, , 8, 11, 19, 29

25 Copyright © 2000 by Monica Yuskaitis What is the median of these numbers? 31, 7, 2, 12, 14, , 7, 12, 14, 19, = 26 2)2)

26 Copyright © 2000 by Monica Yuskaitis What is the median of these numbers? 53, 5, 81, 67, 25, = 120 2)2) 5, 25, 53, 67, 78, 81

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

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

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

30 Copyright © 2000 by Monica Yuskaitis 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, 19, 21, 24

31 Copyright © 2000 by Monica Yuskaitis 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

32 Copyright © 2000 by Monica Yuskaitis Which number is the mode? 29, 8, 4, 8, , 8, 19, 29

33 Copyright © 2000 by Monica Yuskaitis Which number is the mode? 1, 2, 2, 9, 9, 4, 9, , 2, 4, 9, 10

34 Copyright © 2000 by Monica Yuskaitis Which number is the mode? 22, 21, 27, 31, 21, , 22, 27, 31, 32

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

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

37 Copyright © 2000 by Monica Yuskaitis 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

38 Copyright © 2000 by Monica Yuskaitis 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

39 Copyright © 2000 by Monica Yuskaitis How to Find the Range in a Group of Numbers Step 3 – Find the difference between these 2 numbers. 18, 19, 21, 24, – 18 = 9 The range is 9

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

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

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

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

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

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

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© The McGraw-Hill Companies, Inc., 2000 4-1 Chapter 4 Counting Techniques.

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