Question
a) a student answers a multiple choice quiz question that offers four possible answers. Suppose that the probability that the student knows the answer to
a)
a student answers a multiple choice quiz question that offers four possible answers. Suppose that the probability that the student knows the answer to the question is 0.8 and the probability of the student to guess is 0.2. If the student guesses, assume the probability of choosing the correct answer is 0.25. If the student answers a question correctly, what is the probability that the student will really know the correct answer? a) What is the expectation of the student to answer all the questions knowingly from the 120-question multiple choice test? a student answers a multiple choice quiz question that offers four possible answers. Suppose that the probability that the student knows the answer to the question is 0.8 and the probability of the student to guess is 0.2. If the student guesses, assume the probability of choosing the correct answer is 0.25. If the student answers a question correctly, what is the probability that the student will really know the correct answer?
b) What is the expectation of the student to answer all the questions knowingly from the 120-question multiple choice test?
c)What is the probability that the student will knowingly answer at least 50 questions from the 120-question multiple choice test?
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Differential Equations and Linear Algebra
Authors: Jerry Farlow, James E. Hall, Jean Marie McDill, Beverly H. West
2nd edition
131860615, 978-0131860612
