Ninety-two percent of the people who have a particular disease will have a positive result on a given
diagnostic test. Ninety-six percent of the people who do not have the disease will have a negative result on
this test. Suppose 5 percent of the population has the disease.
7. Draw a tree diagram to illustrate these probabilities.

8. What percent of the population would test positive for the disease?

9. If someone from the population tests positive, what is the probability that (s)he has the disease?