Mean of Data

What is the mean of the data set:
8.9, 9.4, 8.6, 9.1

• 8.5

• 8.9

• 9

• 9.1

How do you find the average of a data set?

• Add them all up and divide by how many numbers there are

• List in order from least to greatest

• Add the numbers and subtract the largest number

• Find the repeated numbers

Find the mean of the data set:
34, 57, 58, 56, 21

• 45.2

• 56

• none

• 48

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

• 120

• 400

• 200

• 100

What is the mean of the data set?

17, 24, 26, 17

Another name for the "mean"

• Middle number

• Average

• Number that repeats the most

• Rude

Carlos earned $23, $29, $25, $16, and $17 in tips at each of the tables he served at a restaurant. What is the mean of the tips he received?

• 23

• 110

• 22

• 25

Find the mean of 
9, 11, 2, 6

• 4

• 5

• 6

• 7

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

To find the mean of a set of numbers, add up all the items and divide by...

• 2

• The minimum

• The maximum

• The number of data