After completing the chapter, you should be able to
Percentiles Make Headlines
For statisticians, regardless of political leaning, one of the more remarkable aspects of the “Occupy Wall Street” movement that began in October 2011 was seeing percentiles move out of the textbooks and into the streets, the headlines, and even onto bumper stickers. In declaring “we are the 99%,” the “Occupy” protesters brought renewed focus to the issue of economic inequality by separating Americans into two groups: those whose economic position fell below the 99th percentile—the “ninety-nine percent”—and those whose economic position put them above that 99th percentile—the “top 1 percent.”
To fully understand the point being made by those calling themselves ...