Question

Relationship between arithmetic mean and weighted arithmetic mean

Answer 1

A weighted mean is a kind of average. Instead of each data point contributing equally to the final mean, some data points contribute more “weight” than others. If all the weights are equal, then the weighted mean equals the arithmetic mean (the regular “average” you're used to)

Answer 2

Answer:

Arithmetic Mean are of 2 types:

(i) Simple Arithmetic Mean

In simple arithmetic mean, all items of a series are taken as of equal importance.

(ii) Weighted Arithmetic Mean

In weighted arithmetic mean, different items are taken as of different importance, accordingly weights are accorded to different items depending on their relative importance.