If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

 Formula to calulate the weighted average
 Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

## Formula to calulate the weighted average

#1
April 1st 09, 12:27 AM posted to microsoft.public.excel.misc
 Jrf external usenet poster Posts: 7
Formula to calulate the weighted average

I need some help on a spreadsheet I am working on. I am suppose to use
absolute cell references to calculate the overall total for four exams by
using the four weights found in a different cell range. As follows:

Exam 1 weight 20% cell C/8
Exam 2 weight 20% cell C/9
Exam 3 weight 20% cell C/10
Final Exam weight40% cell C/11

Cell B/17 Cell C/17 Cell D/17 Cell E/17
Cell F/17
Student I exam I 84.0 exam 2 80.0 exam 3 83.0 exam final exam 72.0 overall
total

It states in Cell F17 enter a formula to calculate the weigted average of
the first student's four exams. Use the weights found in the range C8:C11,
matching each weight with the corresponding exam score. Use absolute cell
references for the four weights....

HELP!!! I have no clue what to do here

#2
April 1st 09, 12:47 AM posted to microsoft.public.excel.misc
 dhstein external usenet poster Posts: 266
Formula to calulate the weighted average

=C8*B17+C9*C17+C10*D17+C11*E17

"Jrf" wrote:

> I need some help on a spreadsheet I am working on. I am suppose to use
> absolute cell references to calculate the overall total for four exams by
> using the four weights found in a different cell range. As follows:
>
> Exam 1 weight 20% cell C/8
> Exam 2 weight 20% cell C/9
> Exam 3 weight 20% cell C/10
> Final Exam weight40% cell C/11
>
> Cell B/17 Cell C/17 Cell D/17 Cell E/17
> Cell F/17
> Student I exam I 84.0 exam 2 80.0 exam 3 83.0 exam final exam 72.0 overall
> total
>
> It states in Cell F17 enter a formula to calculate the weigted average of
> the first student's four exams. Use the weights found in the range C8:C11,
> matching each weight with the corresponding exam score. Use absolute cell
> references for the four weights....
>
> HELP!!! I have no clue what to do here
>

#3
April 1st 09, 01:39 AM posted to microsoft.public.excel.misc
 Dave Peterson external usenet poster Posts: 35,218
Formula to calulate the weighted average

I _think_ your instructor wants this formula in F17:

=\$c\$8*b17 + \$c\$9*c17 + \$c\$10*d17 + \$c\$11*d18

The \$'s means that these cells won't change if you copy the formula to other
cells--like in F18, F19, ..., F9999.

Another formula that may get you into trouble:

=SUMPRODUCT(\$C\$8:\$C\$11,TRANSPOSE(B17:E17))

This is an array formula. Hit ctrl-shift-enter instead of enter. If you do it
correctly, excel will wrap curly brackets {} around your formula. (don't type
them yourself.)

Jrf wrote:
>
> I need some help on a spreadsheet I am working on. I am suppose to use
> absolute cell references to calculate the overall total for four exams by
> using the four weights found in a different cell range. As follows:
>
> Exam 1 weight 20% cell C/8
> Exam 2 weight 20% cell C/9
> Exam 3 weight 20% cell C/10
> Final Exam weight40% cell C/11
>
> Cell B/17 Cell C/17 Cell D/17 Cell E/17
> Cell F/17
> Student I exam I 84.0 exam 2 80.0 exam 3 83.0 exam final exam 72.0 overall
> total
>
> It states in Cell F17 enter a formula to calculate the weigted average of
> the first student's four exams. Use the weights found in the range C8:C11,
> matching each weight with the corresponding exam score. Use absolute cell
> references for the four weights....
>
> HELP!!! I have no clue what to do here

--

Dave Peterson
#4
April 1st 09, 02:22 AM posted to microsoft.public.excel.misc
 Jrf external usenet poster Posts: 7
Formula to calulate the weighted average

Thanks so much! That did it for me..How do you copy that format without it
changing the first position to the next such as:
=C9*B17+C10*C17+C11*D17+C12*E17 this is what I get when I try to auto fill..

"dhstein" wrote:

>
> =C8*B17+C9*C17+C10*D17+C11*E17
>
> "Jrf" wrote:
>
> > I need some help on a spreadsheet I am working on. I am suppose to use
> > absolute cell references to calculate the overall total for four exams by
> > using the four weights found in a different cell range. As follows:
> >
> > Exam 1 weight 20% cell C/8
> > Exam 2 weight 20% cell C/9
> > Exam 3 weight 20% cell C/10
> > Final Exam weight40% cell C/11
> >
> > Cell B/17 Cell C/17 Cell D/17 Cell E/17
> > Cell F/17
> > Student I exam I 84.0 exam 2 80.0 exam 3 83.0 exam final exam 72.0 overall
> > total
> >
> > It states in Cell F17 enter a formula to calculate the weigted average of
> > the first student's four exams. Use the weights found in the range C8:C11,
> > matching each weight with the corresponding exam score. Use absolute cell
> > references for the four weights....
> >
> > HELP!!! I have no clue what to do here
> >

#5
April 1st 09, 05:09 AM posted to microsoft.public.excel.misc
 Max external usenet poster Posts: 9,221
Formula to calulate the weighted average

> Another formula that may get you into trouble:
> =SUMPRODUCT(\$C\$8:\$C\$11,TRANSPOSE(B17:E17))

Since it works, why would it get the OP into trouble?
--
Max
Singapore
http://savefile.com/projects/236895
xdemechanik
---

 Thread Tools Display Modes Linear Mode

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts vB code is On Smilies are On [IMG] code is On HTML code is Off
 Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home Excel Newsgroups     Excel Discussion (Misc queries)     Setting up and Configuration of Excel     New Users to Excel     Excel Worksheet Functions     Links and Linking in Excel     Charts and Charting in Excel     Excel Programming About ExcelBanter     About this forum

 Similar Threads Thread Thread Starter Forum Replies Last Post Formula for Weighted Average MJ Excel Discussion (Misc queries) 2 May 12th 08 04:08 AM Moving Weighted Average formula Ori Excel Discussion (Misc queries) 5 August 17th 06 11:03 PM calculating a weighted average using formula bob green Excel Worksheet Functions 1 August 1st 05 10:33 PM calculating a weighted average uisng formula bob green Excel Worksheet Functions 1 August 1st 05 06:31 AM What is the formula for weighted average? Seth23hare Excel Worksheet Functions 1 November 23rd 04 08:49 PM

All times are GMT +1. The time now is 09:31 PM.