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Atest subject is randomly selected for a pregnancy test. what is the probability
Atest subject is randomly selected for a pregnancy test. what is the probability of getting a subject who is not pregnant, given that the test result is positive? find the probability using the data table. positive test negative test subject is pregnant. 78 7 subject is not pregnant. 12 28 a. 0.10 b. 0.13 c. 0.19 d. 0.25
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The correct answer is
B) 0.13
You're given that the test result is positive, so only look at the first column not pregnant = 12 total = 78+12 = 90 probability = 12/90 = 0.13333333.
Hence, the ans would be B.
If i read this correctly you wanted 5^5/5^8?
in which the answer would be 1/125 or .008