Mean Absolute Variation

What is Mean Absolute Deviation?

• The mean of the data

• The absolute value of the mean

• The variation of data values around the mode

• The rage distance between the data values and the mean

In calculating MAD, after you find the absolute deviations you must _____________.

• Do nothing because you are done.

• Subtract them from the mean.

• Find the mean of the absolute deviations.

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.

Find the MAD for the following set: 85, 90, 68, 75, 79

• 79.4

• 6.48

• 32.4

• 79

Find the MAD of the following data sets: $29, $58, $15, $129, $75, $22

• 196

• 54.7

• 114

• 32.67

Find the MAD for the following set: 65, 90, 85, 70, 70, 95, 55

• 12.24

• 75.7

• 85.7

• 40

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 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

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