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The BEST overall quantitative measure of the performance of biometric control devices is:

A.
false-rejection rate.

B.
false-acceptance rate.

C.
equal-error rate.

D.
estimated-error rate.

Explanation:
A low equal-error rate (EER) is a combination of a low false-rejection rate and a low falseacceptance rate. EER, expressed as a percentage, is a measure of the number of times that the
false-rejection and false-acceptance rates are equal. A low EERis the measure of the more
effective biometrics control device. Low false-rejection rates or low false- acceptance rates alone
do not measure the efficiency of the device. Estimated-error rate is nonexistent and therefore
irrelevant.

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