Question

1. Hutchinson-Gilford progeria syndrome (HGPS) is an extremely rare genetic disorder that causes children to age prematurely. The disease affects an estimated one in 18 million people. Assume that you have developed a test for newborns that is 99% accurate (for both patients with and without the disease). What is the chance that a patient with a positive test result for HGPS actually has it?

2. Assume the probability of having the seasonal flu is 10%. Assume that you have a test that is 99% accurate (for both patients with and without the disease). What is the chance that a patient with a positive test result for the flu actually has it?

Answer 1