A new test has been developed to determine whether a given student is overstressed. This test is 90% accurate if the student is not overstressed, but only 80%accurate if the student is in fact overstressed.

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asked Jun 11, 2020 27.2k views

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A new test has been developed to determine whether a given student is overstressed. This test is 90% accurate if the student is not overstressed, but only 80%accurate if the student is in fact overstressed. It is known that 99% of all students are overstressed. Given that a particular student tests negative for stress, what is the probability that the test results are correct, and that this student is not overstressed?