SOLUTION: On a multiple choice examination with three possible answers (out of which only one is correct)for each of the five questions. what is the probability that a candidate would get f

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Question 287200: On a multiple choice examination with three possible answers (out of which only one is correct)for each of the five questions. what is the probability that a candidate would get four or more correct answers just by guessing?
Answer by stanbon(75887) About Me  (Show Source):
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On a multiple choice examination with three possible answers (out of which only one is correct)for each of the five questions. what is the probability that a candidate would get four or more correct answers just by guessing?
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Binomial Problem with n = 5 and p = 1/3
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P(4<= x <=5) = 1-P(0<= x <=3) = 1-binomcdf(5,1/3,3) = 0.9547
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I used a TI calculator to get the result.
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Cheers,
Stan H.