What does a positive correlation on a scatterplot indicate?

• As one variable increases, the other variable tends to decrease.

• There is no relationship between the two variables.

• As one variable decreases, the other variable tends to increase.

• As one variable increases, the other variable also tends to increase.

What does a negative correlation on a scatterplot indicate?

• As one variable decreases, the other variable decreases.

• As one variable increases, the other variable increases.

• There is no relationship between the two variables.

• As one variable increases, the other variable decreases.

How can you determine the relationship between two variables using a scatterplot?

• By analyzing the x-axis values only.

• By calculating the mean of the variables.

• By examining the pattern of points on the scatterplot.

• By drawing a line of best fit through the points.

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

• 25 hours
• 35 hours
• 45 hours
• 15 hours

Which graph has no association?

• A

• B

• C

• D

Which graph has a positive association?

• A

• B

• C

• D

Which graphs has a negative association?

• A

• B

• C

• D

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?  (a)  

• 65
• 92
• 70
• 76

Choose the graph with a trend line that best fits the data. (a)  

• graph 1
• graph 2
• graph 3
• graph 4

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