Weighted Average

[Aloysicus]

This is the example data that I have

Day1 Day 2
Day 3 Day 4
Calls 50 100
150 200
AHT 200 200 200
200

Day 1 Day 2
Day 3 Day 4
Calls 75 80
90 100
AHT 100 100
100 100


Is there a way to do weighted average without using the mathematical way of
'means'?

 

[Jerry W. Lewis]

You can calculate a weighted average as

=SUMPRODUCT(weights,numbers)/SUM(weights)

I haven't a clue what you mean by "the mathematical way of 'means'"

Jerry

 

[Aloysicus]

Hi Jerry,

I have used the sumproduct formula for a single day, single product.

With a single day and 2 or 3 products, how do I use the sumproduct formula
to calculate the weighted average of this day which takes all 3 products
into consideration.

Btw, mathematical means uses, taking the example I wrote below (Calls x
AHT)/Calls.

Aloysicus

 

[Myrna Larson]

Jerry is a bona fide mathematician, so you won't get away with ad hoc
definitions of terms with him <g>.

If you know how to calculate what you mean by "mathetimatical way of means",
then you should be able to create the appropriate formula in your worksheet.

 

[Aloysicus]

I see....guess my explanations were not clear and concise...to this I
apologise, but I was trying to find an easier way to do weighted average
using sumproduct formula instead of the other method I mentioned....this
method makes my excel file very huge....I have like 30 products which I am
trying to do a weighted average for each day of each year.

But thanks for all the help....just trying to find a better solution....