AP Stats Chapter 6 Practice

Which of the scatterplots shows no association?

• 2

• 3

• none of these scatterplots

• all of these scatterplots

• 1

Which scatterplot shows a negative association?

• scatterplots 1 and 3

• 3

• scatterplots 1 and 2

• none of these scatterplots

• 1

Which scatterplot shows a linear association?

• all of these scatterplots

• none of these scatterplots

• scatterplots 2 and 3

• scatterplots 1 and 3

• 2

Which scatterplot shows a moderately, but not very, strong association?

• scatterplots 2 and 3

• scatterplots 1 and 3

• 2

• 3

• none of these scatterplots

Which scatterplot shows a very, not just a moderately, strong association?

• scatterplots 1 and 3

• 1

• 3

• 2

• all of these scatterplots

A ceramics factory can fire eight large batches of pottery a day. In order to better understand pieces breaking, the factory records the number of broken piece in each batch for 3 days and then creates a scatterplot shown. Make a histogram showing the distribution of the number of problem pieces in the 24 batches of pottery examined.

• 
• 
• 
• 

What aspect of the company's problem is more apparent in the scatterplot?

• The constant relationship between batch number and broken pieces.

• The negative, somewhat linear relationship between batch number and broken pieces.

• The positive, somewhat linear relationship between batch number and broken pieces.

• There is not relationship between batch number and broken pieces.

Which correlation matches the scatterplot shown?

• 0.006

• -0.977

• 0.777

• -0.487

Which correlation matches the scatterplot shown?

• 0.006

• -0.977

• 0.777

• -0.487

Which correlation matches the scatterplot shown?

• 0.006

• -0.977

• 0.777

• -0.487