SOLUTION: Student has 10 question test with 5 choices for each answer. He needs to answer 60% or > to pass. If he randomly guesses, what is the % probability he will pass? thank you
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Question 266344: Student has 10 question test with 5 choices for each answer. He needs to answer 60% or > to pass. If he randomly guesses, what is the % probability he will pass? thank you
Choices are: 0.006 0.377 0.060 Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Student has 10 question test with 5 choices for each answer. He needs to answer 60% or > to pass. If he randomly guesses, what is the % probability he will pass? thank you
Choices are: 0.006 0.377 0.060
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Binomial Problem:
n = 10, p(correct) = 1/5, q(wrong) = 4/5
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Find P(6 <= x <=10) = 1 - binomcdf(10,1/5,5) = 0.0064
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Cheers,
Stan H.
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