Question: 10. A test is devised to detect the Zika virus. Suppose the current occurrence in the country can be assumed to be 2%. On the


10. A test is devised to detect the Zika virus. Suppose the current occurrence in the country can be assumed to be 2%. On the basis of extensive testing it is established that the test produces 7% False Positives and 1% False Negatives. A large number of people are tested at random, and those with a positive reaction are taken for further testing and checking. What proportion of people who have the Zika virus are correctly diagnosed? What proportion of people who test positive actually have the Zika virus? What proportion of people with a negative reaction actually have the Zika virus? What proportion of the tests conducted give the incorrect diagnosis? 1.51 crp: Note: A False Positive is the event where a patient is tested positive for a disease given that patient does not have the disease. A False Negative is the event where a patient is tested negative for a disease given that the patient does indeed have the disease
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