system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A diagnostic test for a paicular disease has a sensitivity, of a 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 -
assistant
The correct answer is  Ans. is 'c' i.e., 95% o The probability of not having a disease after a negative screening test is measured by negative predictive value.