The calculation of arithmetic average is straightforward. You sum up all the values and then divide the sum by the number of values. Let's use the example above to illustrate the calculation of mean: First you sum up the annual returns: 11% + (-5%) + 17% + 1% + (-9%) + 21% ...
It will be obvious to the average skilled person however, that some if not all of the advantages of the present invention disclosed hereinafter might be obtainable, even if only to a lesser degree, if only some but not all similar elements of a group do have a particular property. Thus, ...