A student asked a statistics professor if grades were marked "on the curve." The professor decided
To give the student a project to determine if last year's statistics grades were normally distributed.
The professor told the student that last year's mean mark was 70 with a standard deviation of 10
And to use the following results. 
What is the expected number of C's?
A) 39.25
B) 34.13
C) 13.59
D) 30.00
E) 15.87
Correct Answer:
Verified
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