Dr Barton Has Found That Students Who Score Higher Than

Dr. Barton has found that students who score higher than 85% on the first midterm tend to earn scores of 75% or better on the final exam, while students who score less than 60% on the first midterm often end up with a failing grade on the final exam. This suggests that

A) the scores on the first midterm and the final exam are positively correlated.
B) the scores on the first midterm and the final exam are negatively correlated.
C) students who do poorly on the first midterm give up and study less for the final exam.
D) Dr. Barton should change the final exam so it is fairer to students who are not doing well in the course.

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