A certain disease occurs in 17% of a population. The
disease
diagnosed using a blood test. For a person who has the disease
provides
test a positive result (the person is diagnosed with the disease)
in 98% of cases.
However, the test gives a false positive result, ie says that a
person is actually healthy
have the disease, in 5% of cases.
A randomly selected person takes the blood sample which gives a
negative result. What
is the probability that the person is healthy?