A test for diabetes results in a positive test in 95% of the cases where the disease is present and a negative test in 97% of the cases where the disease is absent.If 10% of the population has diabetes,what is the probability that a randomly selected

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A test for diabetes results in a positive test in 95% of the cases where the disease is present and a negative test in 97% of the cases where the disease is absent.If 10% of the population has diabetes,what is the probability that a randomly selected
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A test for diabetes results in a positive test in 95% of the cases where the disease is present and a negative test in 97% of the cases where the disease is absent.If 10% of the population has diabetes,what is the probability that a randomly selected
A test for diabetes results in a positive test in 95% of the cases where the disease is present and a negative test in 97% of the cases where the disease is absent.If 10% of the population has diabetes,what is the probability that a randomly selected person has diabetes,given that his test is positive?
我给再多分你不会做又有你神马事

A test for diabetes results in a positive test in 95% of the cases where the disease is present and a negative test in 97% of the cases where the disease is absent.If 10% of the population has diabetes,what is the probability that a randomly selected
全体人口中患病且呈阳性者占10%×95%=19/200
故随机抽取的一人患病且呈阳性的概率是19/200

给0分还要过程？

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