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binomial probability
Asked Mar 28, 2012, 01:10 AM
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A literature teacher decides to give a 20- multiple choice quize to detremine who has read an assigned novel. Each quetion will have four choices. She wants to choose the passing grade such the probability of passing a student who guesses on every question is less than 0.05. what score should she set as the lowest possible passing grade? a) what is the binomial random variable? b)what is n,p,q? c) what is the teacher looking for? d) how would one write the event of interest, "passing a student who guesses on every question'? e) what score should she set as the lowest possible passing grade? (hint: use the complimentary rule) |
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