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PROBABILITY, CLASS 12, EXERCISE 13.3, Question No. 4, NCERT SOLUTIONS,THE MATHS GURUDEV
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PROBABILITY, CLASS 12, EXERCISE 13.3, Question No. 4, NCERT SOLUTIONS,THE MATHS GURUDEV
In answering a question on a multiple choice test, a student either knows the answer or guesses. Let 3/ 4 be the probability that he knows the answer and 1/ 4 be the probability that he guesses. Assuming that a student who guesses at the answer will be correct with probability 1 /4 . What is the probability that the student knows the answer given that he answered it correctly?
In answering a question on a multiple choice test, a student either knows the answer or guesses. Let 3/ 4 be the probability that he knows the answer and 1/ 4 be the probability that he guesses. Assuming that a student who guesses at the answer will be correct with probability 1 /4 . What is the probability that the student knows the answer given that he answered it correctly?
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