Assume that the test scores from a college admissions test are normally distribu

Question

Assume that the test scores from a college admissions test are normally distributed, with a mean of 450 and a standard deviation of 100.

- What percentage of the people taking the test score between 400 and 500?

- Suppose someone receives a score of 630. What percentage of the people taking the test score better ? What percentage score worse ?

- If a particular university will not admit anyone scoring below 480, what percentage of the persons taking the test would be acceptable to the university ?

Explanation / Answer

Given X~Normal(mean=450, s=100) - What percentage of the people taking the test score between 400 and 500? P(4000.3) =0.3821 (check standard normal table)

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