Finding the Mean of a Data Set

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

• 20
• 18
• 11
• 19

Find the mean of 
9, 11, 2, 6

• 4
• 5
• 6
• 7

Find the mean of these numbers:
5,11,2,12,4,2

• 4.1
• 6
• 4.5
• 4

Find the median of these numbers:
4,2,7,4,3

• 2
• 5
• 7
• 4

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

• 120
• 400
• 200
• 100

Find the mean of these numbers:
5, 11, 2, 12, 4, 2

• 4.1
• 6
• 4.5
• 4

What is the mean?

• # happening the most
• the number in the middle
• biggest-smallest
• the average

Mean is found by _________________________ .

• finding the sum of the data
• finding the middle
• finding the sum of the data, then dividing by the amount of numbers
• subtracting the minimum minus the maximum

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

The Mets had the following wins over the last nine years;
89   70   79   77   74   74   79   90   87.
Find the mean. 

• 80
• 90
• 74
• 16