Mrs. Trotter's Mean Absolute Deviation MAD

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

• 9
• 6
• 1.2
• 5

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

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

• 3
• 5
• 1
• 2

What is another word for average?

• Mean
• Median
• Mode
• Range

Which M.A.D. would show the most variability?

• .5
• 1
• 1.5
• 2

This is found by finding the sum of the data and dividing by the number of values added.

• Mean
• Median
• Mode
• Range