Scatter Plots

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 12 absences should get approximately what score on the final exam?

• 60

• 92

• 70

• 76

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?

• 85

• 92

• 70

• 76

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

• 25 hours

• 35 hours

• 45 hours

• 15 hours

As x increases, y increases

• correlation coefficient

• causation

• positive correlation

• negative correlation

As the age of the car increases, its value decreases. Which scatterplot represents this relationship?

• A

• B

• C

• D

What represents the x axis?

• ABC Company

• Hours Worked

• Amount Earned in Dollars

• Hours in Car

What is a trend line that shows the most accurate relationship between x and y and is is very close to most of the data points?

• linear regression

• no correlation

• trend line

• line of best fit

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 6 chapters. 

• ≅100 pages

• ≅170 pages

• ≅60 pages

• ≅20 pages

What type of association does this graph have?

• positive 

• negative

• none

• all of the above

You are analyzing a scatter plot that has a negative correlation. What is true of the of the x and y values?

• As x increases, y decreases

• As x increases, y increases

• As x decreases, y decreases