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? (Round your answer to 5 decimal places.) Probability:

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.4: Discrete Random Variables; Applications To Decision Making
Problem 2E
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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? (Round your answer to 5 decimal places.) Probability:
Transcribed Image Text: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? (Round your answer to 5 decimal places.) Probability:
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