Suppose that 84% of hypertensives and 23% of normotensives are classified as hypertensive by an automated blood-pressure machine. In other words, the true positive rate is 84%, and the false positive rate is 23%. 20% of the adult population is hypertensive. If an individual is randomly selected from this population and the machine produces a negative result for this individual, what is the probability that the individual is actually not hypertensive?
0.48
0.84
0.95
0.59