SOLUTION: Sir Jay has 184 students in his Basic Calculus class. The scores on the midterm exam are normally distributed with a mean of 72.3 and a standard deviation of 8.9. How many students

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Question 1174830: Sir Jay has 184 students in his Basic Calculus class. The scores on the midterm exam are normally distributed with a mean of 72.3 and a standard deviation of 8.9. How many students in the class can be expected to receive a score between 85 and 95? Express answer to the nearest students
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
Normal Distribution:   μ = 72.3   σ = 8.9
 n = 184  
P(85 < x < 95) = normalcdf(85, 95, 72.3, 8.9)= .0714
 .0714x184 = 13 (rounded down to the nearest student)

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