Unit 7: Mean

Mean

Make sure you have something to write with so you can fill in your notes!

Mean: another word for the average of the data

​To find the mean:

1. Find the sum of the data (total)

2. Divide the sum by the number of pieces of data

​Practice

A. Data set: 8, 2, 3, 10, 12

​Practice

B. Data set: 3, 6, 4, 1, 2

​Practice

C.

​Lets cut & GLue these in our notebooks then do some more practice!

Multiple Choice

Another word for mean is...

• sum

• product

• average

• equation

Multiple Choice

To find the mean of a set of numbers you...

• multiply all the numbers then divide by ho many numbers are in the set

• add the numbers together, then divide by how many numbers are in the set

Multiple Choice

Calculate the mean.

16, 5, 7, 12

• 9

• 6

• 12

• 10

Multiple Choice

Find the mean of these numbers:
2, 57, 38, 42, 6

• 29

• 38

• 50

• 145

Multiple Choice

The height of three basketball players is 210 cm, 220 cm and 191 cm.

What is their average height?

• 210

• 207

• 220

• 200

Multiple Choice

What is the mean of these numbers?
4,5,5,2,3,3,2,8

• 40

• 24

• 4

• 256

Multiple Choice

Find the mean:
28, 18, 19, 18, 17

• 20

• 18

• 11

• 19

Multiple Choice

What is another word for AVERAGE?

• Mode

• Median

• Mean

• Not nice

Multiple Choice

Calculate the mean.

2, 9, 10, 6, 8

• 8

• 4

• 7

• 22

Multiple Choice

Find the mean of the numbers below:

12, 8, 14, 5, 1, 3, 0, 8, 10, 11

• 7.2

• 8

• 9

• 7.4

Multiple Choice

Find the mean of the numbers below:

1.4, 2.8, 2.4, 2.5, 2.8, 3.1, 1.1

• 2.3

• 2.2

• 2.4

• 2.1

Multiple Choice

Mr Holland gives his class a test. The results are:

34%, 44%, 75%, 21%, 98%, 86%, 71%, 76%, 63%, 55%

How many students scored above the mean percentage?

• 4

• 5

• 6

• 7

Multiple Choice

Four friends went shopping for school clothes. Kim bought 5 shirts, Jill bought 4 shirts, Leslie bought 6 shirts, and Crystal bought only 1 shirt. Which answer choice represents the mean of the shirts purchased?

• 3

• 2

• 6

• 4

Multiple Choice

In the first round of the playoffs, Ben Simmons points (in each game) was listed below. How many points per game is he averaging in the playoffs?

17 , 24 , 19 , 17 , 14

• 16.8

• 17.8

• 17

• 18.2

Multiple Choice

Calculate the mean:

99, 87, 84, 91, 97, 86, 83, 90, 93

• 101.2

• 90

• 81

• 73.6

Multiple Choice

On the semester final, Joe scored 85, Jill scored 89, and Bill scored a 99.What was the average score for these students? _________

• 91

• 273