ladielynn1317 ladielynn1317
  • 21-11-2022
  • Mathematics
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an athlete suspected of using steroids is given two tests that operate independently of each other. test a has probability 0.9 of being positive if steroids have been used. test b has probability 0.8 of being positive if steroids have been used. what is the prob- ability that neither test is positive if steroids have been used?

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