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Consider the following statements about symbol types.
1. A choropleth map is appropriate for a percentage.
2. A dot density map places every dot at a precisely surveyed location.
3. A proportional symbol map can carry a raw total honestly.

  • A.2 only
  • B.1 only
  • C.All of them
  • D.1 and 3 only

Answer: D

The first and third are correct, since a rate suits area shading and a point symbol escapes the unit-size problem. The second is wrong: dots are placed to convey the distribution within a unit and are not individually surveyed positions.

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