QuestionQ9

Privacy Enhancing Technologies

When publishing aggregates, what must be done to magnitude data to preserve privacy?

  • A Value swapping.
  • B Noise addition.
  • C Basic rounding.
  • D Top coding.
Explanation

Noise addition perturbs magnitude aggregates to obscure the contribution of any individual, reducing the risk that a person’s data can be inferred from the released statistic.

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