Answers:
C.
D.
Step-by-step explanation:
Each point in the dot plot represents the number of hours that a specific student spent watching TV.
So, for each option we get:
A. This is incorrect because the students spend between 3 and 20 hours a week.
B. If we sum the number of dots for 4 and 5 hours, we will get a greater number than the number of dots for 3 hours. So, this option is also incorrect because there is a greater number of students that watch more than 3 hours of TV.
C. The dot plot goes from 3 to 20 hours, so All students watch 20 or fewer hours of TV each week. Then, this is a correct option.
D. The tallest line of dots is located in 3 hours. So this is a correct answer.
E. The minimum number of hours is 3, so all students watch Tv each week.
Therefore, the answers are:
C.
D.