Mean Absolute Deviation, Standard Deviation, Variance

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

• 9
• 6
• 1.2
• 5

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

What is the second 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 third 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

What is the average distance form the mean, using this data? 10, 8, 5, 12, 20

• 3.4
• 4
• 11
• 5

How much distance or space there is in a data set.

• Consistency
• Inconsistency
• Variability
• Scatterplot

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

• .5
• 1
• 1.5
• 2