6. You have developed a screening methods for a virus that causes a serious illness which is believed to occur in 1 in every 500 people. The screening method indicates correctly when the person actually has the illness. From testing it has been shown that a false positive occurs 2% of the time. This means that the test wrongly indicates that the patient has the illness in 2% of the cases when they do not have the virus. A random person was administered the test and the test yielded a positive result. What is the probability that the person actually has the virus.