Question

a medical test is given in which 75 people test positive. out of this 75 people, 60 are true positives.what is the predictive value (ppv) of the test.

Answer 1

To get the PPV we have to divide the true positive by the total cases that were positive in the test. So we get

$\frac{60}{75}=\frac{12}{15}=\frac{4}{5}$

so the ppv of the test is

$\frac{4}{5}$