A test is 95% accurate, 1% of population has a disease. P(disease | positive test) is
- Acheck_circle
Much smaller than 95% (low base rate)
- B
100%
- C
About 95%
- D
0%
Explanation
Bayes' rule with base rate 1% — even a 95% test yields modest posterior.
Conditional Probability
AP Statistics· difficulty 4/5
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