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Data collected for administrative units are described as

  • A.raw individual records
  • B.aggregated data
  • C.point observations
  • D.continuous field data

Answer: B

Correct answer: aggregated data

Aggregated data are individual records summed or averaged within a reporting unit, which is what a census tract figure is. The aggregation is what creates the two problems considered elsewhere in this topic: the modifiable areal unit problem, since a different set of boundaries would give different figures, and the ecological fallacy, since the aggregate says nothing certain about any individual within it.

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