Question 606620: A multiple choice examination contains 5 questions, each of which 4 options/choices (a,b,c,d). Suppose a student answers by guessing only, what is the probability that
a. he will get perfect?
b. his answer to all questions are of the same letters?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A multiple choice examination contains 5 questions, each of which 4 options/choices (a,b,c,d).
Binomial Problem with n = 5 and p(correct) = 1/4
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Suppose a student answers by guessing only, what is the probability that
a. he will get perfect?
P(x = 5) = (1/4)^5 = 0.0009766
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b. his answer to all questions are of the same letters?
Ans: (1/4)^5 = 0.0009766
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Cheers,
Stan H.
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