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Un article trouvé pour ce sujet.
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Probability of H.I.V. tests |
2007-05-07 |
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Danielle pose la question :
A medical test detects H.I.V. Among those who have H.I.V., the test will detect the disease with probability 0.95; among those who do NOT have H.I.V., the test will falsely claim that H.I.V. is present with probability 0.0125. Among those who take this test, 4% have H.I.V. The test is given to Lucille, and indicates that she has H.I.V. What is the probability that Lucille actually has H.I.V.?
Stephen La Rocque lui répond. |
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