Question

Reggie surveyed several classmates at his school asking them how many hours they spend doing homework each week. The results of his survey are shown in the table below. Find the relative frequency and the percent of frequency. Round to nearest hundredth
Hours of Homework
0-1
2-3
4-5
6-7
8+


number of students
5
16
42
22
5

Answer 1

Total students 5+16+42+22+5 = 90
0-1's probability is 5 / 90 = 5.5% about
2-3's probability is 16 / 90 = 17.7% about
4-5's probability is 42 / 60 = 46.6% about
6-7's probability is 22 / 90 = 24.4% about
8+'s probability is 5 / 90 = 5.5% about
(percentages not rounded, just cut off at the first decimal)