
Concept explainers
What is the difference between scoring in the 90th percentile on a test and scoring 90% correct on a test? Discuss this question carefully, giving examples to illustrate.

To write: The difference between scoring in the 90th percentile on a test and scoring 90% correct on a test.
Explanation of Solution
Consider an exam of 100 marks and the person scored 90 marks in the exam.
Therefore, the person has 90 percentage.
From the percentage is easy to know that the person is passed or failed.
Now for example:
Consider that 100 people appears for an exam and one person says that his percentile is 90 it means the candidate has done better than the other 89% or 90% of the appeared students in the exam. The rest 8% or 9% of the appeared students in the exam have scored better than the person.
The percentile concept is not easy to know that the person is passed or failed.
Therefore, percentage is different from thepercentile.
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