Definition:Normalized Weight Function

Let $$S = \left \langle {x_1, x_2, \ldots, x_n}\right \rangle$$ be a sequence of real numbers.

Let $$W \left({x}\right)$$ be a weight function to be applied to the elements of $$S$$.

Then $$W$$ is defined as being normalized if:
 * $$\sum_x W \left({x}\right) = 1$$