Possibly worth clarifying: the false positive rate (https://en.wikipedia.org/wiki/False_positive_rate https://en.wikipedia.org/wiki/False_positive_rate) is "pro

Possibly worth clarifying: the false positive rate (https://en.wikipedia.org/wiki/False_positive_rate https://en.wikipedia.org/wiki/False_positive_rate) is "probability that a test will return positive, conditional on the hypothesis being false". It's the rate of false positives within the set of negatives, not the rate of false positives within all tests.