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.

A. 0.10

B. 0.13

C. 0.19

D. 0.25

Question

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.

A. 0.10

B. 0.13

C. 0.19

D. 0.25

anonymous · Answer

attachment

ganeshie8 · Answer

You're given that the test result is positive, so only look at the `first column`

ganeshie8 · Answer

not pregnant  = 12
total =  78+12 = 90

probability = 12/90 =  ?