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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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Is 144 considered a high IQ?
yes. The average IQ is 100. So it means you way past the average mark.
If mark travels 20km in 5 hours what is his average speed in kmh?
4
Long should an 8 mark question be?
There is no specific length for any answer. It depends on the question.
Draw a set of x and y axes mark the zero point then stab this point with a pencil?
I do not see why anyone should want to do that!
How fast is a car going to leave a skid mark of 100 feet?
Most cars these days have ABS (Antilock Brake System) and they won't leave a skid mark. The speed will be determined by drag from road surface and how efficient the brakes were working. A 100 foot skid on average would be from a speed of 45-50mph on asphalt.
