IQR & MAD Review

What does M.A.D stand for? (a)  

• Mean as Dirt
• Mean Average Deviation
• Crazy
• Mean Absolute Deviation

What is another word for average? (a)  

• Mean
• Median
• Mode
• Range

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

What is the mean of this data set?
6, 7, 2, 1, 5, 2, 1, 6

Mathematical Equivalence

ON

What is the mean absolute deviation of 13, 14, 17, 28, and 28?

Mathematical Equivalence

ON

Find the MAD:58, 38, 54, 48, 26, 36 (a)  

• 43
• 20
• 10
• 12

Which of the following is true concerning the mean absolute deviation of a set of data? 

• It describes the variation of the data values around the median.
• It describes the absolute value of the mean. 
• It describes the average distance between each data value and the mean.
• It describes the variation of the data values around the mode.

What is the median? (a)  

• 62
• 58
• 66
• 60