Finding the Mean of Data

Find the mean of the data set below:

6, 8, 5, 3, 8

• The mean is 6

• The mean is 30

• The mean is 5

How do you find the mean of a set of numbers?

• Add all of the numbers up and then divide by the amount of numbers you have

• Do the largest number minus the smallest number

• Find the middle number

• Find the number that occurs most often

Find the mean:

7, 7, 15, 17, 4, 20

• 10

• 6

• 16

• 60

Another name for Mean is...

• Median

• Average

• Mode

Find the mean of 
9, 11, 2, 6

• 4

• 5

• 6

• 7

8. Find the mean.
120, 120, 90, 70

• 120

• 400

• 200

• 100

Find the mean of the numbers.
1, 1, 2, 2, 9

• 7

• 1

• 3

• 5

The Yankees had the following wins over the last nine years;
89  103  95  97  95  85   84   87  84.
Find the mean. 

• 103

• 96

• 89

• 91

Find the mean for the number of dog walks per day.

• The mean is 20

• The mean is 4

• The mean is 5

• The mean is Wednesday.

The number of pages that Mia wrote in her journal each day from Monday to Friday is shown below: 9, 8, 12, 11, 20 What is the average number of pages she wrote per day?

• 5

• 6

• 9

• 12