A screening test for cancer has a low false positive rate

Last updated: 6/26/2023

A screening test for cancer has a low false positive rate and a low false negative rate in that with careful use one finds the disease in 95 of the patients having it and only 5 of the patients not having it Assume that 4 of a certain population has the disease What is a the probability that a person who reacts positively to the test will in fact have the disease