SOLUTION: randomly selects answers to all 10 questions on a multiple-choice quiz. Each question has 1 correct answer and 3 incorrect answers. Find the probability that at most 3 answers are
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Question 310950: randomly selects answers to all 10 questions on a multiple-choice quiz. Each question has 1 correct answer and 3 incorrect answers. Find the probability that at most 3 answers are correct. Round your decimal to the nearest 1000th.
You can put this solution on YOUR website! randomly selects answers to all 10 questions on a multiple-choice quiz.
Each question has 1 correct answer and 3 incorrect answers.
Find the probability that at most 3 answers are correct.
Round your decimal to the nearest 1000th.
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Binomial problem with n = 10, p = 1/4
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P(0<= x <= 3) = binomcdf(10,1/4,3) = 0.7759
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cheers,
Stan H.
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