Essay
If a test has a mean of 500 and a standard deviation of 50 (and is normally distributed), what score marks the 15th percentile?
a. On this same test, what proportion of students would be expected to receive scores between 475 and 550?
b. What scores fall at the extreme 10% of this distribution (two-tailed)?
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Correct Answer:
Verified
Because the 15th percentile i...
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