APFIVE Conditional Probability in Medical Testing
A diagnostic test for a disease has a sensitivity of 0.95 (probability of positive test given disease) and specificity of 0.90 (probability of negative test given no disease). If 2% of the population has the disease, what is the probability that a person with a positive test result actually has the disease?
A
0.83
B
0.02
C
0.95
D
0.16
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