Question

A certain deadly disease occurs in 1 percent of the population. A blood test for this disease has a 2 percent false positive rate, and a 5 percent false negative rate (i.e., 2 percent of those not having the disease test positive, and 5 percent of those having the disease test negative). Suppose you want to put your mind at ease and take the blood test.

a) If you have the disease, what is the probability you would correctly get a positive test result Use TWO decimal places.

b) If you do NOT have the disease, what is the probability you would correctly get a negative test result? Use TWO decimal places.

Answer 1