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

Answer:

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

$Class-width=\frac{Range}{Number-of-classes}$

           $=\frac{29-1}{6}=4.67 \approx 5$

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.