Multiple Choice
Let's say that the grades on this exam are normally distributed with a mean of 70 and a standard deviation of 10. Approximately what percentage of students will have a grade between 50 and 90 on this exam?
A) 50 percent
B) 95 percent
C) 99 percent
D) 80 percent
E) Can't tell from this information
Correct Answer:
Verified
Correct Answer:
Verified
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