Question

A new medical screening test is used to detect a rare, non-life-threatening condition. If a person has this condition, the test always detects it. Approximately 0.2% of the population has the condition. Over many trials, the test returns a positive result 6% of the time. Julio takes the test and gets a positive result. To the nearest tenth of a percent, what is the probability that Julio actually has the condition?

Answer 1

@triciaal

Answer 2

@marihelenh

Answer 3

@triciaal Earlier when I was working on those percent problems, were you there and trying them also? I think I have an idea, but I will need you to check it.