when you are grading you can use the mean as an average.
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
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!
It is useful to know the name of a thing, but more useful to know the thing itself.
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.
Average is a casual word . You need to know the MEAN Mean = {10+12+14+16)/4 mean = 52/4 mean = 13 The answer!!!!
It is always useful to know about factors and multiples.
Useful for...in a troop? Useful for...in a Circus? No offense, but what do you mean?
"Mean value" is another way of saying average.
as useful as " is conduction or what part of speech it is?
abrar
this dick.. it keeps the average woman regular; if you know what I mean!
Research is useful in economics to know the need of the consumer.