Specificity Problem (Probability)

flm

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Joined
Mar 11, 2015
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Hello!

I have been posed a question that I can't seem to figure out. Can someone please help me?

The question is as follows:

Person X does not have a disease and he takes a diagnostic test Y times. The specificity is 0.6 and the false positive is 0.4. What is the probability of a detected positive test at after Y number of tests?

It would be helpful to see the probability for taking the test 2 times, 3 times, and 4 times, as well as Y times.

Thank you!
 
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