The final exam grades of a Business Statistics class are bel…
The final exam grades of a Business Statistics class are bell-shaped with a mean of 81 and a standard deviation of 4. a. Calculate the z-score of a student scoring an 86 on the midterm. [a] b. Approximately what percentage of students scored between a 73 and 93? [b] c. Approximately what percentage of students scored below a 77? [c]
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