2. Poll Results America Online (AOL) occasionally conducts online polls in which Internet

users can respond to a question. If a graph is constructed to illustrate results from such a poll,

and the graph is designed objectively with sound graphing techniques, does the graph provide

us with greater understanding of the greater population? Why or why not?

3. Ethics in Statistics Assume that, as a newspaper reporter, you must graph data showing

that increased smoking causes an increased risk of lung cancer. Given that people might be

helped and lives might be saved by creating a graph that exaggerates the risk of lung cancer, is

it ethical to construct such a graph?

4. Areas of Countries In constructing a graph that compares the land areas of the five

largest countries, you choose to depict the five areas with squares of different sizes. If the

squares are drawn so that the areas are in proportion to the areas of the corresponding countries,

is the resulting graph misleading? Why or why not?

In Exercises 5-10, answer the questions about the graphs.

5. Graph of Weights According to data from Gordon, Churchill, Claus er, ET Al., women

have an average (mean) weight of 137 lb or 62 kg, and men have an average (mean) weight of

172 lb or 78 kg. These averages are shown in the accompanying graph. Does the graph depict

the data fairly? Why or why not?

6. Graph of Teaching Salaries See the accompanying graph that compares teaching

salaries of women and men at private colleges and universities (based on data from the U.S.

Department of Education). What impression does the graph create? Does the graph depict

the data fairly? If not, construct a graph that depicts the data fairly.