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Assertion (A): An unclassed choropleth map preserves more of the data than a classed one.
Reason (R): Each unit receives a tone calculated directly from its own value.

  • A.Both A and R are true, and R is the correct explanation of A
  • B.Both A and R are true, but R is not the correct explanation of A
  • C.A is true but R is false
  • D.A is false but R is true

Answer: A

Both are true and the reason explains how: with no grouping step, no differences are flattened. The trade is that the reader can no longer match a tone to a stated range, so precision in the data is bought with imprecision in the reading.

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