The average score of 100 students taking a statistics final was 70 with a standard deviation of 7. Assuming a normal distribution, approximately how many scored 90 or higher?
A) 0.4979
B) 0.0021
C) 0.9979
D) 2.86
E) None of the choices are correct

Question

Quizplus · Accepted Answer

The Answer of The average score of 100 students taking a statistics final was 70 with a standard deviation of 7. Assuming a normal distribution, approximately how many scored 90 or higher?
A) 0.4979
B) 0.0021
C) 0.9979
D) 2.86
E) None of the choices are correct

The Average Score of 100 Students Taking a Statistics Final