Which statement best illustrates a negative correlation between the number of hours spent watching TV the week before an exam and the grade on that exam?
A. Watching too much TV leads to poor exam performance
B. Smart students watch less TV
C. Viewing TV interferes with a student's ability to prepare for the upcoming exam
D. Students who watch more TV perform more poorly on their exams
Answer: D. Students who watch more TV perform more poorly on their exams