Statistical map

http://www.boardofed.idaho.gov/naep/data/sci05/sci05_map-08-1-science.htm

The map shown here is an example of a statistical map because it shows the relative rates of success in science of white students across he United States. This is a great example of a statistical mp because there are no absolute values, such as Florida is 100 I.Q. points lower than students in Idaho, it simply states that in reference to Idaho, Florida is lower. This map proves its usefulness in many situations but most importantly when strictly "fact" data is not necessary, but simply relative relationships are most important.