The weighted arithmetic mean is a measure of central tendency of a set of quantitative observations when not all the observations have the same importance. ... The weighted arithmetic mean equals the sum of observations multiplied by their weights divided by the sum of their weights.

What is the formula of calculating weighted arithmetic mean?

The weighted arithmetic mean is computed by using the following formula: ¯Xw=∑wx∑w. Here: ¯Xw stands for weighted arithmetic mean. x stands for values of the items and.

What is the meaning of weighted mean?

The weighted mean is a type of mean that is calculated by multiplying the weight (or probability) associated with a particular event or outcome with its associated quantitative outcome and then summing all the products together.