The chance of rain on a picnic day is 40%. If it rains, the chance the picnic is 'good and enjoyable' is 30%. If it does not rain, that chance is 80%. The chance (in %) that it was raining, given that the picnic was 'good and enjoyable', is ________ (in integer).
2 marksStatisticsProbability and Bayes' theoremTotal probability and Bayes' theoremModerateabout 2 min
IIT JAM 2026 Question 53: Probability and Bayes' theorem
Answer and worked solution
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Probability and Bayes' theorem has come up 190 times in 7 exams since 2004.
What this question tests
This question is on Total probability and Bayes' theorem, part of Probability and Bayes' theorem in Statistics.
Reversing a conditional probability and updating beliefs from evidence.
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