Question

Distinguish between arithmetic mean and weighted mean

Answer 1

In a simple arithmetic mean, you just add up all the values and divide by the number of data points. In a weighted mean, you multiply the values by a certain factor that is based on some other criterion to give more ‘weight’ to some values than others.

Answer 2

Answer:

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

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