Mean, Mode, Median

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1

Slide 1

Mean, Median, Mode & Range

By Mr. Clutter

VMS Library

2007-2008

Slide 2

Vocabulary Review

Sum – the answer to an addition problem.

Addend – the numbers you added together to get the sum.

6 + 9 = 15

Slide 3

Definition

Mean

Means

Average

Slide 4

Definition

Mean – the average of a group of numbers.

2, 5, 2, 1, 5

Mean = 3

Slide 5

Mean is found by evening out the numbers

2, 5, 2, 1, 5

Slide 6

Mean is found by evening out the numbers

2, 5, 2, 1, 5

Slide 7

Mean is found by evening out the numbers

2, 5, 2, 1, 5

mean = 3

Slide 8

How to Find the Mean of a Group of Numbers

Step 1 – Add all the numbers.

8, 10, 12, 18, 22, 26

8+10+12+18+22+26 = 96

Slide 9

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

8+10+12+18+22+26 = 96

How many addends are there?

Slide 10

How to Find the Mean of a Group of Numbers

Step 2 – Divide the sum by the number of addends.

6)

96

sum

# of addends

1

6

3

6

6

6

3

Slide 11

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

Slide 12

What is the mean of these numbers?

7, 10, 16

11

Slide 13

What is the mean of these numbers?

2, 9, 14, 27

13

Slide 14

What is the mean of these numbers?

1, 2, 7, 11, 19

8

Slide 15

What is the mean of these numbers?

26, 33, 41, 52

38

Slide 16