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OpenStudy (anonymous):
PLEASE HELP! In a history class Colin and Deana both write a multiple choice quiz. There are 10 questions. Each question has five possible answers. What is the probability that (a) Colin will pass the test if he guesses and answer to each question? (b) Deana will pass the test if she studies so that she has a 75 percent chance of answering each question correctly?
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OpenStudy (anonymous):
guess it depends largely on what constitutes "passing"
OpenStudy (anonymous):
My teacher didn't state that so I guessed around 70.
OpenStudy (anonymous):
@satellite73
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