SSCP · Question #1289
What are the three performance measurements used in biometrics?<br>(Choose three)
The correct answer is A. Crossover error rate B. False rejection rate D. False acceptance rate. The three primary performance measurements in biometrics are the False Acceptance Rate (FAR), False Rejection Rate (FRR), and the Crossover Error Rate (CER), which balances FAR and FRR.
Question
What are the three performance measurements used in biometrics?<br>(Choose three)
Options
- ACrossover error rate
- BFalse rejection rate
- CPositive error rate
- DFalse acceptance rate
- ENegative error rate
How the community answered
(34 responses)- A88% (30)
- C9% (3)
- E3% (1)
Why each option
The three primary performance measurements in biometrics are the False Acceptance Rate (FAR), False Rejection Rate (FRR), and the Crossover Error Rate (CER), which balances FAR and FRR.
The Crossover Error Rate (CER) is a critical metric indicating the point where the False Acceptance Rate and False Rejection Rate are equal, providing a single overall performance indicator.
The False Rejection Rate (FRR) measures the likelihood that a legitimate user is incorrectly denied access by the biometric system.
'Positive error rate' is not a standard or commonly recognized performance measurement in biometric systems.
The False Acceptance Rate (FAR) measures the likelihood that an unauthorized user is incorrectly granted access by the biometric system.
'Negative error rate' is not a standard or commonly recognized performance measurement in biometric systems.
Concept tested: Biometric performance metrics (FAR, FRR, CER)
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