# Probability

posted by
**James**
.

Can someone please help me? certain medical diagnostic test is used to determine if people have pinkyitis and it is known that 1 in 1300 Americans has the disease. The test correctly diagnoses the presence of pinkyitis 97% of the time and it correctly diagnoses the absence of the disease 98% of the time. Find the probability that a person has the disease given that the test says that he has the disease. Find the probability that a person does not have the disease given that the test says that he does not have the disease