Listed below in order are prices in dollars for a Big Mac hamburger in the United States, Canada, Mexico, China, Japan, Russia, Switzerland, Italy, Spain, Britain, India, and Egypt. Such data are used to compare currency exchange rates and the costs of goods in different countries. Do these data suggest that the prices are roughly the same, or do they appear to vary by large amounts? Do any of the measures of center reveal anything about the variation of the prices?

5.3 5.3 2.6 3.2 3.4 2.3 6.8 5.1 4.8 4.4 2.8 1.9