Question

A small startup company wishes to know how many hours, per week, that its employees spend commuting to and from work. The number of hours for each employee are shown below. Construct a frequency table for grouped data using four classes.

13, 5, 4, 16, 13, 6, 16, 4, 23, 21, 7, 12, 23, 13, 5, 8, 8, 7, 13, 16

Answer 1

Class Interval | Frequency

4 - 9 | 5

9 - 14 | 8

14 - 19 | 4

19 - 24 | 3

Note that the last class interval (19 - 24) includes the maximum value of 23.

This frequency table represents the number of employees who spend a certain number of hours commuting within each class interval.