Need to calculate an Average please!!

Ted210

New Member
Joined
Mar 26, 2013
Messages
7
Hello,

I hope someone can help!

I need to calculate an average for a questionnaire.
There is a scale of 1-10 about how much they liked a product (1 being not and 10 being liked it a lot)

Now I need an average of what the people said. (e.g. 6.7)

Example:

12345678910
5688101
971005962391318

<colgroup><col span="10"></colgroup><tbody>
</tbody>


Is there a formula for this perhaps or a way to calculate it?

Thanks!
 

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You could calculate he Mean Average using this:


Excel 2007
ABCDEFGHIJ
212345678910
35688101971005962391318
4
5
64.454976
Sheet4
Cell Formulas
RangeFormula
A6=SUMPRODUCT(A2:J2,A3:J3)/SUM(A3:J3)
 
Upvote 0
Great thanks!!

That helps a lot!

If possible, we asked the people before and after a product trial how much they liked the product.

And I would need to calculate the percentage of how much their opinion shifted?

So for example as above take before trial average opinion was 4.45 and after it was 8.2

Any suggestions perhaps?

Thanks!
 
Upvote 0
You could calculate he Mean Average using this:

Excel 2007
ABCDEFGHIJ
212345678910
35688101971005962391318
4
5
64.454976

<colgroup><col style="width: 25pxpx"><col><col><col><col><col><col><col><col><col><col></colgroup><thead>
</thead><tbody>
</tbody>
Sheet4

Worksheet Formulas
CellFormula
A6=SUMPRODUCT(A2:J2,A3:J3)/SUM(A3:J3)

<thead>
</thead><tbody>
</tbody>

<tbody>
</tbody>



Sorry Firefly..... but doesnt seem to work with me.

=SUMPRODUCT(E26:N26,E27:N27)/SUM(E27:N27)

And I get
0.0885

<colgroup><col width="48"></colgroup><tbody>
</tbody>
 
Upvote 0
What do the separate parts of the formula return for you ie:

=SUMPRODUCT(E26:N26,E27:N27)

and

=SUM(E27:N27)
 
Upvote 0
Sorry I found the problem and now it works perfectly! So thanks a lot!

Any suggestions perhaps because of the percentage?

thank you!
 
Upvote 0
Well, from my point of view, the % change would be calculated from:

=(End% Less Start%)/Start%

or

=(8.2 - 4.45)/4.45
 
Upvote 0

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