Question: Compared with restriction controls, perturbation controls: a. Allow fewer statistics to be calculated on the data contained in the database b. Eliminate biases or inconsistencies

Compared with restriction controls, perturbation controls:

a. Allow fewer statistics to be calculated on the data contained in the database

b. Eliminate biases or inconsistencies that arise as a result of implementing inference controls

c. Are not subject to averaging attacks

d. Result in an information loss associated with the variance of the perturbed statistic around the true value

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