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An Aptitude Test Has a Mean of 400 and a Standard

Question 45

Multiple Choice

An aptitude test has a mean of 400 and a standard deviation of 40. The test scores are normally distributed. If 2500 people take the test, find the number of people who will score between 314 and 490.


A) 35
B) 2430
C) 70
D) 2465

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