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Mathematics 8 Online
OpenStudy (anonymous):

A student guesses on every question on a multiple choice test that has 8 questions each with 3 possible answers. What is the probability that the student will get at least 6 of the questions right?

OpenStudy (anonymous):

P(guess 6 correct) + P(guess 7 correct) + P(guess 8 correct)

OpenStudy (anonymous):

look up binomial probability http://www.talkstats.com/showthread.php/146-Binomial-Probabilities

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