Distribution can be shown as a dot distribution map. These show population concentrations well but can give the impression some areas have no people.


The dot-distribution maps portray quantitative data as a dot which represents a number of the phenomenon found within the boundary of a geographic area. The pattern of distributed dots reflects the general locations where the phenomenon was most likely to occur. The pattern and number of dots within a geographic area reveal the density of the phenomenon.


http://www.bbc.co.uk/scotland/education/bitesize/standard/img/geography/population/g155.gif