Question

A test to detect an infection gives a positive result 98% of the time if a person is infected, and it is 97% accurate for people who are not infected. What percentage of results will be false positives?a) 1%b) 2%c) 3%d) 5%

Answer 1

False positives are positive results from the test of a non-infected person, which happens 100-97=3% of the time, choice C.