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when you are grading you can use the mean as an average.
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∙ 10y ago
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Why is it a useful value to report standard deviation?
The standard deviation of a distribution is the average spread from the mean (average). If I told you I had a distribution of data with average 10000 and standard deviation 10, you'd know that most of the data is close to the middle. If I told you I had a distrubtion of data with average 10000 and standard deviation 3000, you'd know that the data in this distribution is much more spread out. dhaussling@gmail.com
Why do we study dispersion?
It is not enough to know only the mean or some other measure of the central tendency: it is useful to know the dispersion. If, in a test, the average score is 50 and you score 52 you have clearly scored better than average but how much better? If the scores range from 0 to 100, you are pretty close to average whereas if they range from 48 to 52 you are amongst the top of the class!
Is it more useful to know the name of a thing or to know the the thing itself?
It is useful to know the name of a thing, but more useful to know the thing itself.
When is finding the average not useful?
There is no meaningful average wen data are categorical (qualitative). Also, the arithmetic mean is not a good measure of central tendency when the data distribution is skewed.
When is it useful to know about factors and multiples?
It is always useful to know about factors and multiples.
What are gibbons useful for?
Useful for...in a troop? Useful for...in a Circus? No offense, but what do you mean?
How do you know the verbal interpretation on mean value?
"Mean value" is another way of saying average.
What does 'as useful as' mean?
as useful as " is conduction or what part of speech it is?
Why is moving-average method useful?
abrar
Why is moving average method useful?
abrar
What is and example of regulatory commission?
this dick.. it keeps the average woman regular; if you know what I mean!
How research useful in the economics?
Research is useful in economics to know the need of the consumer.
