Concept explainers
According to a Gallup poll, in 2012 almost a third of Americans named Iran their country’s greatest enemy. That number matched public sentiment in the United States toward Saddam Hussein’s Iraq at the time of the 2003 invasion. The line graphs show the percentage of Americans who considered either Iraq or Iran their country’s greatest enemy from 2001 through 2012. Use this information to solve Exercises 49-50.
(In Exercises 49-50, refer to the graph at the bottom of the previous page.)
a. Find an estimate for the percentage of Americans who considered Iraq their country’s greatest enemy in 2001.
b. Between which two years did the percentage of Americans who considered Iraq their country’s greatest enemy decrease at the greatest rate?
c. In which year did 32% of Americans consider Iraq their country’s greatest enemy?
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Thinking Mathematically (6th Edition)
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