SOLUTION: A multiple-choice test consists of six questions, each with A-E answers. If you guess the answer to each question, how many questions can you expect to get correct?
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Question 711911: A multiple-choice test consists of six questions, each with A-E answers. If you guess the answer to each question, how many questions can you expect to get correct? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A multiple-choice test consists of six questions, each with A-E answers. If you guess the answer to each question, how many questions can you expect to get correct?
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Binomial Problem with n = 6 and P(correct) = 1/5
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Expected number of correct = mean = np = 6(1/5) = 1 1/5
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Cheers,
Stan H.
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