Question: For an exam given to a class, the students scores ranged from 35 to 98, with a mean of 74. Which of the following is

For an exam given to a class, the students’ scores ranged from 35 to 98, with a mean of 74. Which of the following is the most realistic value for the standard deviation: -10, 0, 3, 12, 63? Clearly explain what’s unrealistic about each of the other values.

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