Exploring Line of Best Fit

A perfect positive correlation has a correlation coefficient of ____. 

• 1

• -1

• 0

Which of the following lines represents the line of best fit for the scatter plot?

• A

• B

• C

• D

Which scatter plot shows a linear relationship between x and y?

• Graph A

• Graph B

• Graph C

• Graph D

which scatterplot shows the correct trend line (line of best fit) for the relationship showing the number of bags of chocolates that are sold and the price per bag?

• A

• B

• C

• D

Which scatterplot shows the correct trend line (line of best fit) for the relationship shown?

• Graph A

• Graph B

• Graph C

• Graph D

which scatterplot shows the correct trend line (line of best fit) for the relationship showing the number games played and attendance in the Small Fry Baseball Tournament?

• W

• X

• Y

• Z

Which of the following lines represents the line of best fit for the scatter plot?

• A

• B

• C

• D

which scatterplot shows the correct trend line (line of best fit) for the relationship showing the number of Visitors of a library and the number of books checked out?

• W

• X

• Y

• Z

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 pages would be in a book with 19 chapters. 

• 150 pages

• 170 pages

• 190 pages

• 210 pages

A line of best fit used for

(Choose all tht apply)

• To make predictions

• To connect the points

• To make the graph look pretty

• To make it look like you know what you are doing