The accompanying graphical display appeared in USA Today (October 22, 2009). It summarizes survey responses to a question about whether visiting social networking sites is allowed at work. Which of the graph types introduced in this section is used to display the responses? (USA Today frequently adds artwork and text to their graphs to try to make them look more interesting.)

Even though this table is not a frequency distribution, this type of information is often represented graphically in the form of a bar chart, as illustrated in Figure 3.10. From the bar chart, we can see that the average amount of money that men and women plan to spend is similar for all of the types of purchases except for electronics and computers, in which the average for men is quite a bit higher than the average for women.

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Amount plan to spend Clothing Shoes School supplies Electronics and computers Dorm or apartment furnishings Men Women FIGURE 3.10 Comparative bar chart for the backto-college spending data of men and women.

EXERCISES 3.1

- 3.14