Classed choropleth maps

Classed choropleth map ss a map that uses graded differences in shading or color or the placing of symbols on the map in order to indicate the average values of some property or quantity in those areas. This would involve creating a classed frequency legend including a frequency histogram, a frequency curve, and shading. This map is an example of a choropleth map that shows total spending of overseas residents in Great Britain in 2003.

http://www.neighbourhood.statistics.gov.uk/dissemination/Info.do;jessionid=ac1f930c30d56e375c393b14479d8644f3c0d6e19544?m=0&s=1303506180193&enc=1&page=userguide/detailedguidance/statisticalpresentation/statisticalmaps/best-practice-statistical-maps.htm&nsjs=true&nsck=true&nssvg=false&nswid=1362