In a multiple-choice test, an examinee either knows the correct answer with probability p, or guesses with probability 1 − p.The probability of answering a question correctly is 1/m , if he or she merely guesses. If the examinee answers a question correctly, the probability that he or she really knows the answer is [NDA II 2017]

Correct Answer is : mp1+(m−1)p

NDA Math Probability

Question : 33 of 100

Marks: +1, -0

In a multiple-choice test, an examinee either knows the correct answer with probability p, or guesses with probability 1 − p.The probability of answering a question correctly is

, if he or she merely guesses. If the examinee answers a question correctly, the probability that he or she really knows the answer is

[NDA II 2017]

mp
1+mp
mp
1+(m−1)p
(m−1)p
1+(m−1)p
(m−1)p
1+mp

Validate

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