Which of the following statements is CORRECT about both dot maps and cartograms?

Question

Which of the following statements is CORRECT about both dot maps and cartograms?

A)Dot maps depict quantitative information for enumeration units while cartograms depict qualitative information for enumeration units.

B)Cartograms depict quantitative information for enumeration units while dot maps depict qualitative information for enumeration units.

C)Both dot maps and cartograms depict quantitative information for enumeration units, but cartograms also depict spatial distribution information within each unit that dot maps do not.

D)Both dot maps and cartograms depict quantitative information, but dot maps also depict spatial distribution information within each unit that cartograms do not.

Explanation / Answer

Which of the following statements is CORRECT about both dot maps and cartograms?
Answer: D)Both dot maps and cartograms depict quantitative information, but dot maps also depict spatial distribution information within each unit that cartograms do not.

Explanation: A dot distribution map is a map type that uses a dot symbol to show the presence of a feature or phenomenon. Although dot maps are often used to represent the spatial distribution of one particular phenomenon using dots with different hues can create a multivariate dot map This type of map may be particularly useful for comparing the distribution of related phenomena or related attributes of a phenomena. It is a type of thematic map that uses dots or other symbols on the map to show the values of one or more numeric data fields.
       A cartogram is a map in which some thematic mapping variable such as travel time, population is substituted for land area or distance. The geometry or space of the map is distorted in order to convey the information of this alternate variable. A cartogram is a map but a it is a unique type of map because it combines statistical information with geographic location.

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