42 Chapter 2 Graphical Summaries of Data c. Approximately how many refugees came from Russia? d. Approximately how many more refugees came from Somalia than from Laos? 4. In October 2010, the Gallup poll asked a sample of people the following question: “Do you think Congress has accomplished more this year, less this year, or about the same as it has in the past few years?” The following pie chart presents the percentages of people who gave each response. Did Congress Accomplish More, Less, or the Same? No opinion 5.0% Same 35.0% Less 37.0% More 23.0% a. Which was the most common response? b. What percentage of people said that Congress has accomplished the same or less than in the past few years? c. True or false: More than half of the people surveyed said that Congress accomplished as much or more this year than in the past few years. Answers are on page 48. USING TECHNOLOGY We use the data in Table 2.6 to illustrate the technology steps. Table 2.6 lists 20 responses to a survey question about the reason for visiting a local library. Table 2.6 Study Meet someone Check out books Meet someone Check out books Study Study Meet someone Check out books Check out books Meet someone Check out books Study Study Check out books Check out books Study Study Meet someone Study MINITAB Constructing a frequency distribution Step 1. Name your variable Reason, and enter the data into Column C1. Step 2. Click on Stat, then Tables, then Tally Individual Variables... Step 3. Double-click on the Reason variable and check the Counts and Percents boxes. Step 4. Press OK (Figure A). Figure A
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