Outliers, that is scores outside the expected range can distort the average score for the test. As a result, many teachers will dismiss the high and low score in averaging the test and establishing the curve for grading. This theory is why the median can be more valuable than the mean in evaluating test performance.
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yes. The average IQ is 100. So it means you way past the average mark.
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I do not see why anyone should want to do that!
pre mark