Answer :
Final answer:
The difference between the number of students who watch 6 to 7 hours of TV a week and those who watch 2 to 3 hours is 7.
Explanation:
To find the number of students who watch 6 to 7 hours of TV a week compared to those who watch 2 to 3 hours, we can calculate the difference between the two groups. Let's say there are x students who watch 6 to 7 hours, and y students who watch 2 to 3 hours. The difference between the two groups is the value of x - y. Therefore, the answer is D. 7, as there are 7 more students who watch 6 to 7 hours of TV compared to 2 to 3 hours of TV.
Learn more about TV viewing habits here:
https://brainly.com/question/23835530
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