Chapter 8.2, Problem 53E

a.

To determine

To construct: A plot that represents the distribution of the number of accidents effectively.

Explanation of Solution

Given:

The data set is:

Hour	Number of accidents
1	5
2	8
3	17
4	31
5	24
6	18
7	12
8	7
9	1
10	0
11	2
12	14
13	21
14	12
15	10
16	1
17	0
18	1
19	3
20	21
21	23
22	18
23	11
24	2

Graph:

The figure could be constructed as:

  

b.

To determine

To construct: The figure that shows the relationship between the number of accidents and time.

Explanation of Solution

Graph:

The figure is:

  

c.

To determine

To discuss: The point that is highlighted by part (a) not part (b).

Explanation of Solution

The histogram constructed in part (a) shows that the distribution is skewed to the left and this point is not showed by the plot constructed in part (b).

d.

To determine

To discuss: The point that is highlighted by part (b) not part (a).

Explanation of Solution

The plot constructed in part (b) shows that the number of accidents are the highest at the hour 5, 13 and 21 and this is not depicted by the histogram constructed in part (a).