Analyze Scatter Plots

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Use the line of best fit to predict how many pages would be in a book with 6 chapters.

• 100 pages

• 170 pages

• 60 pages

• 20 pages

Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam?

• 65

• 92

• 70

• 76

Find the slope for the line of best fit using points (2,2) and (4,3)

• 2

• 1/2

• -2

• -1/2

What is a line of best fit used for?

• To make predictions

• To make the graph look pretty

• To connect the points

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

How many laps can a bicycle make around the park in 23 minutes?

• 44 laps

• 12 1/2 laps

• 23 laps

What can you analyze from a scatter plot?

• The relationship between two variables.

• The exact value of a variable.

• The favorite color of most people.

• The number of pets each person has.

The following scatter plot shows Pam's training as she prepares to run a 6 mile race at the end of the month.  Which of the following would be a reasonable approximation for the length of time it would take for her to run 6 miles? 

• 50 min

• 80 min

• 45 min

• 63 min

Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam? 

• 65

• 92

• 70

• 76

Based on the graph, if Joe earned $800, how many hours did he work?

• 45 hours

• 60 hours

• 30 hours

• 15 hours

Based on the graph, if Joe earned $400, how many hours did he work?

• 25 hours

• 35 hours

• 45 hours

• 15 hours