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The scores on a final exam were approximately normally distributed with a mean of 82 and a standard deviation of 11. If 85 students took the exam, and above a 60 is a passing gr…

The scores on a final exam were approximately normally distributed with a mean of 82 and a standard deviation of 11. If 85 students took the exam, and above a 60 is a passing gr…
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The scores on a final exam were approximately normally distributed with a mean of 82 and a standard deviation of 11. If 85 students took the exam, and above a 60 is a passing grade, how many students failed the exam?

A. 2
B. 12
C. 13
D. 1

User Enchance
by
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1 Answer

4 votes
Hello,
Please, see the attached file.
Thanks.
The scores on a final exam were approximately normally distributed with a mean of-example-1
User Martin Verjans
by
8.5k points
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