Mathematics

Mathematics, 20.07.2019 12:00, fatlenny

A multiple-choice test has seven possible answers for each question. (a) if a student guesses at the answer, what is the probability that he or she selects the correct answer for one particular question?

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Mathematics, 22.06.2019 20:00, stodd9503

Astudent answers a multiple-choice examination question that offers four possible answers. suppose the probability that the student knows the answer to the question is 0.9 and the probability that the student will guess is 0.1. assume that if the student guesses, the probability of selecting the correct answer is 0.25. if the student correctly answers a question, what is the probability that the student really knew the correct answer? (round your answer to four decimal places.)

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Mathematics, 16.07.2019 06:30, mahadharun

Common information: in answering a question on a multiple-choice test, a student either knows the answer or the student just guesses. suppose that the probability that the student knows the answer is 0.75, and the probability the student doesn't know the answer and guesses is 0.25. assume that there are 5 choices for each multiple-choice question, i.e. the probability that the student who guesses will be correct is 0.20. the student who knows the answer will be correct all the time. what is the conditional probability that the student knew the answer to a question given that the student answered it correctly

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Mathematics, 08.10.2019 05:00, juneham

In answering on a multiple choice test, a student either know the answer or guesses. let p be the probability that the students knows the answer and 1-p be the probability that the student guesses. assume that a student who guesses at the answer will be correct with probability 1/m, where m is the number of multiple choice alternatives. what is the conditional probability that a student knew the answer to a question when he or she answered it correctly?

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Mathematics, 10.10.2019 21:00, oscargonzalez4310

In answering a question on a multiple-choice test, a student either knows the correct answer or guesses it. let 0.7 be the probability that the student knows the answer, and 0.3 be the probability that the student is guessing. assume that a student who guesses the answer will be correct with probability 0.2. what is the probability that a student knows the answer to a question, given that she answered it correctly?

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