SOLUTION: A quiz consists of 10 multiple-choice questions, each with 5 possible answers. For someone who makes random guesses for all of the answers, find the probability of passing if the m
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Question 874888: A quiz consists of 10 multiple-choice questions, each with 5 possible answers. For someone who makes random guesses for all of the answers, find the probability of passing if the minimum passing grade is 60 %.
Answer by reviewermath(1029) (Show Source): You can put this solution on YOUR website!
Q:
A quiz consists of 10 multiple-choice questions, each with 5 possible answers. For someone who makes random guesses for all of the answers, find the probability of passing if the minimum passing grade is 60 %.
A:
Let X = number of correct answers
X ~ Binomial(10, 0.2)
P(X ≥ 6) = =
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