Correlation / ScatterPlots / Line of Best Fit

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?

• A. 50 min

• B. 80 min

• C. 45 min

• D. 60 min

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

1. 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

What type of correlation (relationship)?

The outside temperature and the amount of layers you wear.

• Positive correlation

• Negative correlation

• No correlation

What type of correlation (relationship)?

The temperature outside and the amount of ice cream sales.

• Positive correlation

• Negative correlation

• No correlation

What is the correlation (relationship)?

The number of siblings you have and your height.

• Positive correlation

• Negative correlation

• No correlation

If the carpenter worked for 6 days, how much did he earn?

• $1,250

• $1,500

• $1,750

• $2,000

Make a prediction for a resting heart rate after 6 hours of exercise a week.

• 6

• 50

• 55

• 59

The scatter plot below shows the number of books read by students in Mrs. Hall’s English class and their final grades. Which statement represents the best description about the line of best fit?

• The more books students read, the lower their English grade.

• The more books students read, the higher their English grade.

• The fewer books students read, the higher their English grade.

• No relationship exists between the number of books students read and their English grades.

What is the type of correlation?

• Negative

• No Correlation

• Positive