What important variable is used when evaluating the effectiveness of biometric systems?

A.
Type I errors

B.
Acceptance by society

C.
Type II errors

D.
CER

Explanation:
The crossover error rate (CER) is the point at which Type I errors and
Type II errors are equal and represents the best way of measuring biometrics
effectiveness. A system with a lower CER value provides more accuracy than a system
with a higher CER value.