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by dllthomas
969 days ago
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> If 75% have diabetes (or don't have diabetes -- either way), then 75% accuracy is also the accuracy of a naive coin flip. I don't think that's right. Always answering yes is going to have 75% accuracy if the prevalence is 75%, but always answering no will have 25% accuracy, and the coin flip will pick both of those equally (and uncorrelated with whether the individual has diabetes or not). |
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