Question

The following table represents a grouped frequency distribution of the number of hours spent on the computer per week for students. What percentage of students used the computer between 7 and 14.9 hours per week? Round your answer to one decimal place, if necessary.



Hours


Number of Students
3.0-6.9 4
7.0-10.9 17
11.0-14.9 15
15.0-18.9 14
19.0-22.9 6

Answer 1

(17+15)/total number = ?

Multiply ? by 100.