Medical Test.
A particular test for a disease is 96% accurate.
If one has the disease, the test comes back 'Yes' 96% of the time, and if one does not have the disease, the test comes back 'Yes' 4% of the time.
If 100 of 10000 tested patients have the disease, what is the probability that the person with the diagnosis 'Yes' has the disease?
80%20%96%40%