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?
watching too much television leads to poor exam performance.
smart students watch less television.
viewing television interferes with a student’s ability to prepare for the upcoming exam.
students who watch more television perform more poorly on their exams.

Students who watch more television perform more poorly on their exams.

Explanation:

Television can be very detrimental to students' academic performance. There needs to be a balance between the amount of time a student is watching and the amount of time he is studying, doing physical and academic activities, and sleeping.

The more time the student spends assuming the less time he will have for other activities. With this, the activities of academic nature will be impaired, the student will not give enough attention to the studies and with that the academic performance of this student will fall.

From this we can conclude that students who watch more television perform worse on exams.

the answer would be in this answer. someone already asked the question.  

that is alot i do not no