Average

Now I am here to give you some quality information on symbol of mean or average and average deviation.
In general mean or average of n numbers of data x₁, x₂, …, x_n like that the sum of the deviations of the observations from x is 0. The symbol for mean is given as .

Mean is used to learn the unsimilarity in accumulation of the supposal aggregation set of the statistical suffice. It is as that of the very purpose of the sample signify in the statistics. The average finds the middling of the presumption information set in the statistics.

Also you can gain a learning on math online as well as other subjects such as Speaking English help and so on.

Do post your comments.