Let’s assume we know that 1% of adults over the age of 60 have lung cancer, that 90% of adults who have

lung cancer will test positive (called a true positive), and that 8% percent of adults that do

NOT have lung cancer will also test positive (called a false positive). What is the probability of actually having lung cancer if an adult tests positive for lung cancer?

A) 0.90

B) 0.01

C) 0.10

D) 0.08

E) None of the other answers are correct