95% accuracy for a diagnostic test is not that impressive. Wikipedia says one in 5 Americans will have a skin cancer in their lives. If each American has 10 m

95% accuracy for a diagnostic test is not that impressive. Wikipedia says one in 5 Americans will have a skin cancer in their lives. If each American has 10 moles, and we assume at most 1 is cancerous, that means a test which says "not cancerous" for all moles will have ~98% accuracy. And 10 moles is an underestimation, not to mention that the same mole can be benign at first and develop cancer later, so we should really be looking over the number of moles * checkups, pushing the raw "accuracy" even higher.