Mean and Mad Practice

Find the mean: 50, 30, 8, and 4

• 23

• 92

• 4

• 13

Match how far each data point (at the top) is from the mean of 23.

(Subtract each number from 23.)

• 27

• 50

• 15

• 4

• 7

• 30

• 19

• 8

Find the MAD: 50, 30, 8, and 4.

(Remember, the differences you got on Step 2 were 27, 7, 15, and 19. Find the mean of those numbers!)

• 23

• 68

• 4

• 17

Find the mean: 18, 14, 20, and 12.

• 4

• 16

• 20

• 64

Find the MAD: 18, 14, 20, and 12

(Remember, the differences you got on Step 2 were 2, 2, 4, and 4. Find the mean of those numbers!)

• 3

• 4

• 6

• 12

Find the mean: 11, 4, 6, and 7

• 28

• 12

• 7

• 6

Match how far each data point (at the top) is from the mean of 7.

(Subtract each number from 7.)

• 1

• 11

• 4

• 7

• 0

• 6

• 3

• 4

Find the Mean Absolute Deviation of the set: 10, 5, 7, 14, 19, 32, 25

• 8

• 16

• 56

• 112

Which is the correct Mean and Mean Absolute Deviation to the following numbers?

• Mean: 3.66

  MAD:3

• Mean: 3

  MAD:3.66

• Mean:3

  MAD:4

• None of the above

What is the definition of Mean?

• Last number minus the first number

• Range of the numbers

• Number that occurs the most often

• Average of the numbers