Thematic Maps- Choropleth, Dot Density, and Proportional Symbol (Cartographic Designs) Flashcards
1
Q
Choropleth Map Purpose
A
Obtain sense of spatial pattern, Compare two or more choropleth maps, Obtain approximate value for a geographic area
2
Q
Why Choropleth
A
Extremely popular, easy to visualize variation of phenomenon across geographic area, shows levels of variability in a region
3
Q
Choropleth Map
A
Thematic map in which previously defined areas are shaded or patterned in proportion to the measurement of statistical variable
4
Q
Choropleth Data
A
Discrete and derived(not absolute), ratios involving and idependent of area, data attached to enumeration unit, standardized to show rates and ratios, attached to a continuous statistical surface
