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A test 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

Respuesta :

ag6567
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.

the probability of getting a subject who is not pregnant, given that the test result is positive is 0.13.

What is the probability?

Probability determines the chances that an event would happen. The probability the event occurs is 1 and the probability that the event does not occur is 0.

The probability = number of people who are not pregnant that test positive / total number of people who test positive

12/90 = 0.13

To learn more about probability, please check: https://brainly.com/question/13234031

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