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A test has 12 multiple choice questions With four choices and only 1 correct answer for each question. If we just randomly guess on each

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A test has 12 multiple choice questions With four choices and only 1 correct answer for each question. If we just randomly guess on each of the 12 questions: . What is the probability of getting at least half correct? . What is the probability of getting more than the expected number of correct guesses? . Ifthe test has 50 multiple choice questions, each with four choices, what is the distribution and the parameters of the number of correct guesses? . What is the probability of getting at least 14 and fewer than half of the 50 questions correct if we are randomly guessing

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