(02.05 MC)
The medical department at a local government agency has compiled test results for sick individuals who have been tested for the flu. They have found that not all people who
test positive for the flu actually have the flu, and some people who test negative for the fu actually have the flu. The following tree diagram shows the conditional relative
frequencies
What percent of sick individuals test negative for the flu?
-23%
-27%
-75%
-25%