Mad, Mean and Median

Find the Mean Absolute Deviation of the set: 12, 25, 7, 14, 2.

The mean is 12

Find the Mean Absolute Deviation of the set: 23, 15, 15, 17, 10.

The mean is 16.

Find the Mean Absolute Deviation of the set: 11, 9, 36, 28, 6.

The mean is 18.

Which mean absolute deviation would have a greater variability or spread?  4.2 or 8.5?

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.

Find the Mean Absolute Deviation of the set: 3, 1, 5, 4, 7.

The mean is 4.

True or false? :The larger the Mean Absolute Deviation the more consistent the data is.

• True

• False

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 average distance between the data values and the mean

Find the median:

5, 6, 3, 9, 0, 4, 1, 2, 7

• 4

• 4.1

• 5

• 4.5