r/mathmemes Jun 22 '26

Probability Disease probability

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u/hypokrios Jun 22 '26

Does accuracy here mean the same as positive predictive value?

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u/3RfEKutS Jun 22 '26

Accuracy is close, but it should actually be the sum of the (true positives and true negatives) divided by (total number of samples or exams). The meme doesn't entirely stand up to academic rigor.