SOLUTION: A student guesses on all of his answers on a 20 question quiz.
Assuming that the student guesses correctly 73% of the time for each item; what is the probability of getting at mos
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Assuming that the student guesses correctly 73% of the time for each item; what is the probability of getting at mos
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Question 479820: A student guesses on all of his answers on a 20 question quiz.
Assuming that the student guesses correctly 73% of the time for each item; what is the probability of getting at most 14 answers correct on the quiz?
a. 0.183
b. 0.281
c. 0.464
d. 0.536 Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A student guesses on all of his answers on a 20 question quiz.
Assuming that the student guesses correctly 73% of the time for each item; what is the probability of getting at most 14 answers correct on the quiz?
Binomial Problem with n= 20 and p = 0.73
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P(0<= x <=14) = binomcdf(20,0.73,14) = 0.4643
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Cheers,
Stan H.
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a. 0.183
b. 0.281
c. 0.464
d. 0.536
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