A certain disease has an incidence rate of 0.2%. If the false negative rate is 8% and the false positive rate is 4%, compute the probability that a person who tests positive actually has the disease.

32%

Step-by-step explanation:

Imagine 100000 people are tested.  

Of these 100000:

8% of them:

Of the 98000 who do not have the disease, 4% will test positive:

So of the:

Thus, the probability is:

So, out of people who test positive actually 32% has the disease.

the thermometer is precise but not accurate

step-by-step explanation: