2-3 Graphs That Enlighten and Graphs That Deceive 71 Pareto Charts. In Exercises 11 and 12 construct the Pareto chart. 11. Box Office Boffo Recent annual gross revenue (millions of dollars) for the leading movie studios are as follows: 20th Century Fox (1082), Buena Vista (3092), Paramount (757), Sony>Columbia (1304), Universal (1772), Warner Brothers (1941). Are these data likely to be reasonably accurate? 12. Getting a Job In a survey, subjects seeking a job were asked to whom they should send a thank-you note after having a job interview. Results were as follows: 40 said only the person they spent the most time with, 396 said everyone they met, 40 said only the most senior-level person, 15 said the person that they had the best conversation with, and 10 said that they don’t send thank-you notes (based on data from TheLadders.com). Comment on the results. Pie Charts. In Exercises 13 and 14, construct the pie chart. 13. Box Office Boffo Use the data from Exercise 11 “Box Office Boffo.” 14. Getting a Job Use the data from Exercise 12 “Getting a Job.” Frequency Polygon. In Exercises 15 and 16, construct the frequency polygons. 15. Chicago Commute Times Use the frequency distribution from Exercise 13 in Section 2-1 on page 52 to construct a frequency polygon. Does the graph suggest that the distribution is skewed? If so, how? 16. Presidents Use the frequency distribution from Exercise 14 in Section 2-1 on page 53 to construct a frequency polygon. Does the graph suggest that the distribution is skewed? If so, how? Deceptive Graphs. In Exercises 17–20, identify how the graph is deceptive. 17. Self-Driving Vehicles In a survey of adults, subjects were asked if they felt comfortable being in a self-driving vehicle. The accompanying graph depicts the results (based on data from TE Connectivity). 18. Subway Fare In 1986, the New York City subway fare cost $1, and as of this writing, the current cost is $2.50, so the 1986 price was multiplied by 2.5. In the accompanying graph, the large bill is 2.5 times as tall and 2.5 times as wide as the smaller bill. 1986 Subway Fare Current Subway Fare
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