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2. A multiple-choice test has 25 questions. There are four choices for each question. A student...


2. A multiple-choice test has 25 questions. There are four choices for each question. A student who has not studied for the test decides to answer all questions by randomly choosing one of the four choices. What probability distribution can be used to compute his chance of correctly answering at least 15 questions?
a. Normal distribution b. Binomial distribution c. Poisson distribution d. None of these

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