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Attempt Score 0 out of 20 points Time Elapsed 51 minutes out of 45 minutes OVER TIME Question 1 A multiple-choice examination has 15 questions,

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Attempt Score 0 out of 20 points Time Elapsed 51 minutes out of 45 minutes OVER TIME Question 1 A multiple-choice examination has 15 questions, each with five possible answers, only one of which is correct. Suppose that one of the students who takes the examination answers each of the questions with an independent random guess. What is the probability that he answers at least ten questions correctly? Question 2 Find the distribution function for the random variable of the probablety distribution x3 , 0

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