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FIGURE 3-15
The Perils of a Pie Chart
Pie charts make it difficult to make comparisons. It takes some effort to determine that 6% of Republicans and 30% of Democrats would be most upset if their children had a farm animal in their dorm rooms. It would be far easier to make this comparison from a bar graph.
Data from http://www.vanityfair.com/magazine/2013/05/60-minutes-poll-college-locations