- 7 A New Test For The Covid Virus Gives A False Negative 3 Of The Time And A False Positive 2 Of The Time In Davie 1 1 (27.7 KiB) Viewed 70 times
7. A new test for the Covid virus gives a false negative 3% of the time and a false positive 2% of the time. In Davie, 1
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7. A new test for the Covid virus gives a false negative 3% of the time and a false positive 2% of the time. In Davie, 1
7. A new test for the Covid virus gives a false negative 3% of the time and a false positive 2% of the time. In Davie, 11% of the population has the virus. (a) You take this test and get a positive result. What is the likelihood that you actually have the virus? (b) Your friend also takes the test and gets a negative result. How likely is your friend to have Covid, despite the negative test result?