A screening test gave 60 true positives, 15 false negatives, 20 false positives and 205 true negatives. What is the positive predictive value?
Answer and explanation
Correct answer: D. 75%
- Step 1: The positive predictive value is the share of positive results that are true: TP / (TP + FP).
- Step 2: 60 / (60 + 20) = 75%.
Answer
75%.
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