On a Saturday night 20% of all drivers in U.S.A. are under the influence of alcohol. The…
Mathematics · JEE Advanced · NTA Exams — Statistics and Probability
On a Saturday night 20% of all drivers in U.S.A. are under the influence of alcohol. The probability that a driver under the influence of alcohol will have an accident is 0.001 . The probability that a sober driver will have an accident is 0.0001 . If a car on a saturday night smashed into a tree, the probability that the driver was under the influence of alcohol, is
- 3/7
- 4/7
- 5/7
- 6/7
Answer
(C) 5/7
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