Find Mean or Average

What is the approximate mean of the data? 45, 55, 60, 48, 57, 52, 49

• 50

• 55

• 52.3

• there is no such thing as a decimal.

What is the first step (1-2) when calculating the Mean Absolute Deviation?

• Find the distance each value is from the mean

• Find the mean of the data

• Find the mean of the distances

What is the third step (4-5) when calculating the Mean Absolute Deviation?

• Find the distance each value is from the mean

• Find the mean of the data

• Find the mean of the distances

In calculating MAD, after you find the average or mean you must _____________.

• do nothing because you're done

• Find out the distance each number is from the mean.

• Find the distance each number is from zero.

What is the mean of the data: 15, 20, 25, 17, 18

• 15

• 16

• 18

• 19

What is the mean absolute deviation of the data: 15, 20, 25, 17, 18

• 4.5

• 2.8

• 4

• 3.8

What is the absolute mean deviation of the data? 45, 55, 60, 48, 57, 52, 49 if the mean is 52.3

• 4.0

• 5

• 5.2

• 4.33

Find the MAD: (mean absolute deviation)

58, 38, 54, 48, 26, 36

• 10

• 20

• 12

• 43

What is the second step (3) when calculating the Mean Absolute Deviation?

• Find the distance each value is from the mean

• Find the mean of the distances

• Find the mean of the data

Determine the mean absolute deviation of the data.
9, 7, 11, 10, 8

• 9

• 6

• 1.2

• 5