SOLUTION: A rapid test for the presence in the blood of antibodies to HIV, the virus that causes AIDS, gives a positive result with probability about 0.006 when a person who is free of HIV a

Question 1054110: A rapid test for the presence in the blood of antibodies to HIV, the virus that causes AIDS, gives a positive result with probability about 0.006 when a person who is free of HIV antibodies is tested. A clinic tests 980 people who are all free of HIV antibodies.
a) What is the mean number of positive tests? (Give answer to 2 decimal places.)
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
gives a positive result with probability about 0.006
when a person who is free of HIV antibodies is tested.
980(.006) = 5.88 = 6 is the mean number of positive tests
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