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The proportion of people in a given community who have a certain disease is 0.005. A...

The proportion of people in a given community who have a certain disease is 0.005. A test is available to diagnose the disease. If a person has the disease, the probability that the test will produce a positive signal is 0.99. If a person does not have the disease, the probability that the test will produce a positive signal is 0.01

a. If a person tests positive, what is the probability that the person has the disease?

b. If a man tests negative, what is the probability that he actually has the disease?

c. For many medical tests, it is standard procedure to repeat the test when a positive signal is given. If repeated tests are independent, what is the probability that a person will test positive on two successive tests if they have the disease?

d. Assuming repeated tests are independent, what is the probability that a person tests positive on two successive tests if they do not have the disease? e. If a person tests positive on two successive tests, what is the probability that they have the disease?

NOTE: the answer of a is 0.332

math   Statistics-And-Probability   
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Answer #1

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As HOMEWORKLIB RULES rule i little bit confused about e bit.So i can't answer for that.If you want please upload it as as another question.THANK YOU......if you have any doubt please mention in comment box.I will help youPlease don't give thumb down.

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