Changes

Thus one way of defining the '''average''' would be:

Thus one way of defining the '''average''' of a set of data would be:

* the sum of a group of numbers divided by the number of numbers it the group.

* the sum of all the values divided by the number of items in the data set.

Please see the table of mathematical symbols for explanations of the symbols used.

Please see the table of mathematical symbols for explanations of the symbols used.