Calculating the Mean

What is the mean?

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

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

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

• 120
• 400
• 200
• 100

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

• 120
• 400
• 200
• 100

Find the mean:
3.8, 4.2, 4.0, 4.2, 4.2

• 4.08
• 20.4
• 5.1
• 4.2

Find the mean of the set of data
5.5,4.5,6.75,3.25

• 6
• 4.5
• 5
• 4

Find the mean of the data:
3, 18, 25, 32, 53, 72

• 33.8
• 3.38
• 2.03
• 203

Find the mean of the data:
15, 17, 25, 30, 42

• 129
• 2.58
• 12.9
• 25.8

Find the mean of the data:
8, 3, 7, 4, 9, 5

• 36
• 5
• 7
• 6