Line of Best Fit Predictions

Q1. What is the trend observed in the data?

• A) positive trend

• B) negative trend

• C) no trend

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

• A

• B

• C

• D

What is the equation of the line of best fit?

• y= 2x

• y=3x+7

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

What type of association (correlation) does this graph have?

• positive

• negative

• none

• all of the above

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