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11-05-2018
Mathematics

contestada

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

Respuesta :

Professor1994 Professor1994

12-05-2018

Hello,
Please, see the attached file.
Thanks.

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