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

Question

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

Quizplus · Accepted Answer

The Answer of 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

A Student Asked a Statistics Professor If Grades Were Marked