Question

How do choropleth maps use colors?

Colors are used to represent changes in climate zones.
Varying colors are used to indicate territorial boundaries and changes.
Darker colors are used to indicate greater amounts of what is being measured.
Colors are used to highlight historical trends of the topic being studied.

Answer 1

Answer:

Choropleth Maps display divided geographical areas or regions that are coloured, shaded or patterned in relation to a data variable. The data variable uses colour progression to represent itself in each region of the map.

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Answer 2

The Choropleth Maps use colors on the basis of a one-to-one mapping between the statistics and the color code intensity. The various shades and intensities of colors then depict the distribution if statistics within geography.

Choropleth Maps :

• It is a type of data representation in the form of colors on a map using the concept of theming.
• It represents divided geographical areas on a map using differentiating shades of colors.
• The intensity of the color shade is a result of a Color-Gradient function which is a function of a statistical value to display on the map.
• Ex. For a Map of Population Density: the more the density, the greater the shade of color and vice versa.

Usage of Colors in Choropleth Maps :

• There is a function mapping between the statistical value to represent and the corresponding color shade intensity to show.
• Darker or heavier shades have high intensity and denote greater statistical value in that area.
• Lighter shades have low intensity and denote lesser statistical value in that geographic area.
• The two geographies are distinct as both have different corresponding color intensities to show and thus boundaries can be depicted.

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