A biometric security device using fingerprints erroneously refuses to admit $3$ in $2,000$ authorized persons from a facility containing classified information. The device will erroneously admit $3$ in $1,017,000$ unauthorized persons. Assume that $98$ percent of those who seek access are authorized.

If the alarm goes off and a person is refused admission, what is the probability that the person was really authorized?

Answer rating: 100% (QA)

Answer So the probabilit... View the full answer