Question: 5.) Several statistics students are unprepared for a multiple-choice exam with 40 questions, and all of their answers are guesses. Each question has five

5.) Several statistics students are unprepared for a multiple-choice exam with 40

5.) Several statistics students are unprepared for a multiple-choice exam with 40 questions, and all of their answers are guesses. Each question has five possible answers, and only one of them is correct. a. What constitutes a success on a single trial? b. What is the probability of success on a single trial? c. Find the mean for the number of correct answers for such students. d. Find the standard deviation for the number of correct answers for such students. e. Would it be usual or unusual for a student to pass by guessing and getting at least 28 correct answers? Why or Why not?

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