Question: The two scatterplots below show the relationship between final and mid-semester exam grades recorded during several years for a Statistics course at a university. (a)

The two scatterplots below show the relationship between final and mid-semester exam grades recorded during several years for a Statistics course at a university.

(a) Based on these graphs, which of the two exams has the strongest correlation with the final exam grade? Explain.

(b) Can you think of a reason why the correlation between the exam you chose in part (a) and the final exam is higher? Final Exam 100 60- 40- 1 40 60 Exam 1 80 100

Final Exam 100 60- 40- 1 40 60 Exam 1 80 100 Final Exam 100- 80- 60- 40 40 60 Exam 2 80 100

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a To determine which of the two exams shows the strongest correlation with the final exam grade we need to look at how tightly the points in the scatt... View full answer

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