Question 473237
In a test there are ten multiple choice questions. For each question there is a choice of four answers, only one of which is correct. A student guesses each of the answers.
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Binomial Problem with n=10 and p = 1/4
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a. Find the probability that he gets more than seven correct.
P(8<= x <=10) = 1 - P(0<= x <=7) = 0.0004158
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He needs to obtain over half of the marks to pass and each question carries equal weight.
b. Find the probability that he passes the test.
P(6<= x <=10) = 1-P(0<= x <=5) = 0.0197
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Cheers,
Stan H.
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