Question

The following set of numbers represents the number of hours a group of students spent reading over the course of two weeks. 3, 19, 11, 29, 4, 6, 10, 16, 2, 21, 15, 22, 13, 9, 1, 17, 2, 26, 18, 7 On your own sheet of paper, graph the set on a histogram, using six intervals in the display. Make sure to label your graph.

Answer 1

To plot the histogram, we need to find the class width.

`Class-width=(Range)/(Number-of-classes)`

`=(29-1)/(6)=4.67 \approx 5`

Therefore, the frequency distribution for the given data is:

Number of hours Number of students

0 - 5 5

5 - 10 3

10 - 15 3

15 - 20 5

20 - 25 2

25 - 30 2

The histogram for the given data is attached.