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Questions › JNU › JNU SIS 2012 › Q14
4 marks, −1Statistics › Probability and Bayes' theorem › Addition rule, complements and inclusion-exclusionEasyabout 1 min

JNU SIS 2012 Question 14: Probability and Bayes' theorem

The probabilities of solving a problem by 3 students are 37\tfrac{3}{7}73​, 38\tfrac{3}{8}83​ and 13\tfrac{1}{3}31​ respectively. If each one of them tries to solve it independently, then the probability that the problem is not solved is

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The probabilities of solving a problem by 3 students are 3/7, 3/8 and 1/3 respectively. If each one of them tries to solve it independently, then the probability that the problem is not solved is (A) 2/8 (B) 3/7 (C) 4/21 (D) 5/21

Probability and Bayes' theorem has come up 190 times in 7 exams since 2004.

What this question tests

This question is on Addition rule, complements and inclusion-exclusion, part of Probability and Bayes' theorem in Statistics.

The probability of at least one of several events, and of none.

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Question from the JNU SIS 2012 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.