Astate health department reports a 55% rate of a certain virus for the "at-risk" population. under certain conditions, a preliminary screening test for the virus is correct 90% of the time. (subjects are not told that they are infected until additional tests verify the results.) if someone is randomly selected from the at-risk population, what is the probability that they have the virus if it is known that they have tested positive in the initial screening?
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Astate health department reports a 55% rate of a certain virus for the "at-risk" population. under c...
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