Unit 8 Review

What is the first step to solving Mean Absolute Deviation?

• Find the mean of the new set of numbers

• Find the mean of the given data set

• Subtract the mean from each original data point

The last step to find the Mean Absolute Deviation is to

• Find the distance each value is from the mean

• Find the mean of the distances

• Find the mean of the data

The list shows the number of free throws Jason made while at basketball practice. 15, 17, 11, 12, 13, 16

What is the mean absolute deviation of these numbers?

• 84

• 14

• 2

• 5

True or False? The absolute value of a number will always be positive.

• True

• False

Find the Mean Absolute Deviation.

58, 38, 54, 48, 26, 36

• 43

• 10

• 20

• 12

What type of association does this graph have?

• positive 
• negative
• none
• all of the above

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 

• 12 chapters
• 15 chapters
• 18 chapters
• 21 chapters

Which graph has no association?

• A

• B

• C

• D

Which graph has a positive association?

• A

• B

• C

• D

Which graphs has a negative association?

• A

• B

• C

• D