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Dot density mapping shows a distribution by

  • A.joining points that share an identical value
  • B.placing dots of equal value across the area
  • C.shading each whole area according to its rate
  • D.scaling one symbol per area by its total

Answer: B

Correct answer: placing dots of equal value across the area

Each dot stands for a fixed quantity, and the dots are placed where the phenomenon is believed to occur rather than spread evenly over the unit. Density then reads directly as intensity. The technique’s advantage over the choropleth is that it shows variation *within* a unit; its weakness is that the placement is an interpretation, and a reader cannot recover the underlying figures by counting.

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