SOLUTION: Before being allowed to enter a maximum-security area at a military installation, a person must pass three independent identification tests: a voice-pattern test, a fingerprint tes

Question 1201523: Before being allowed to enter a maximum-security area at a military installation, a person must pass three independent identification tests: a voice-pattern test, a fingerprint test, and a handwriting test. If the reliability of the first test is 97%, that of the second test is 98.5%, and that of the third is 98.5%, what is the probability that this security system will allow an improperly identified person to enter the maximum-security area? (Round your answer to seven decimal places.)
Answer by ikleyn(52884) (Show Source): You can put this solution on YOUR website!
.
Before being allowed to enter a maximum-security area at a military installation, a person must pass
three independent identification tests: a voice-pattern test, a fingerprint test, and a handwriting test.
If the reliability of the first test is 97%, that of the second test is 98.5%, and that of the third is 98.5%,
what is the probability that this security system will allow an improperly identified person
to enter the maximum-security area? (Round your answer to seven decimal places.)
~~~~~~~~~~~~~~

In this problem, it is unclear what these percents mean.

For example, regarding 97%, 

    - is it the fraction of those who are allowed AND identified by the system 
      as passed this test,

    - or it is the fraction of those who are not allowed AND identified by the system
      as failed this test.

Or BOTH ?

Or something different ?

Clarification is needed.

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