Mean of Data Set

To find the _________ you add up all the numbers and then divide by how many numbers you have.

• Mean

• Median

• Mode

• Range

Find the mean of these numbers:
4,2,5,6,3

• 2

• 5

• 4

• 6

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

• 40

• 24

• 4

• 256

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

• 20

• 18

• 11

• 19

Find the mean:
9, 9, 3, 2, 8, 7, 4 

• 49

• 6

• 9

• 7

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

• 29

• 38

• 50

• 145

If my data set had an outlier that was quite a bit more than the other numbers in my data set, what would it do to my average

• leave it the same

• increase the average

• decrease the average

Find the Mean Absolute Deviation:  10, 9, 3, 8, 10.  The Mean is 8

Find the Mean Absolute Deviation: (MAD)

5, 9, 3, 8, 5.

The Mean is 6.

Find the Mean Absolute Deviation of the set: 6, 3, 2, 4, 5.

The mean is 4.