Mean and Median and Mean Absolute Deviation

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

• 4.5

• 2.8

• 4

• 3.8

Find the MAD: (mean absolute deviation)

58, 38, 54, 48, 26, 36

• 10

• 20

• 12

• 43

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 mean absolute deviation of the data set?

• 20.6

• 19

• 144

• 133

What is the mean absolute deviation of the data set?

• 52.3

• 50

• 366

• 51

Find the Mean Absolute Deviation: 10, 9, 3, 8, 10

• 3

• 5

• 1

• 2

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

• 3

• 5

• 1

• 2

What is the first step 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

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