False positive math

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    False positive math

    I can't wrap my head around the weird math here. Can somebody explain this for a retard?


    A test that has a 99% specificity is still wrong 1% of the time. And if it's being used to test a population where 1% of people are infected, half the time a positive result will be a false positive.


    https://www.npr.org/sections/health-...prove-accuracy


    .

    #2
    That's not math, it's stupid.
    The test will still only give a 1% false positive rate no mater what percentage of the population you test.
    Searching before posting will reduce dumb ass questions from you, but may not stop dumb ass responses from me.

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