A Statistical Map is a map that depicts the variation in the quantity of a factor. This particular map shows the distribution of phone lines in 1992. The numbers represent main lines per 100 inhabitants. The blue shades indicate 0-1 while the rusty orange indicates 45+. The term "main lines" seems to indicate this map is referencing "land lines." It is interesting to note that if current data were to be mapped, the final result would undoubtedly be much different since many Americans have opted out of maintaining a land line in lieu of maintaining a cell phone. Therefore, it is easy to see how this particular data could be "manipulated" by a cartographer.
