A diagnostic test for a particular disease has a sensitivity of 0.90 and a specificity of 0.80. A single test is applied to each subject in the population in which the diseased population is 30%. What is the probability that a person, negative to this test, has no disease?
a) Less than 50%
Correct answer : c) 95%
The probability that a person negative to this test has no disease signifies the Negative predictive value of the test.