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 how do I get excel to add,then average numbers with two decimals?
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## how do I get excel to add,then average numbers with two decimals?

#1
February 2nd 08, 10:27 AM posted to microsoft.public.excel.worksheet.functions
 wenz324 external usenet poster Posts: 1
how do I get excel to add,then average numbers with two decimals?

ie I need to tally little athletics results. I need the average of the best
three scores.
These are times (minutes, seconds and hundredths of seconds) and I now
realise we probably should have been entering using colons throughout the
season. I'm trying to fix the problem without having to manually change the
results into times.

3.06.51
3.11.43
3.22.56
3.23.94
3.56.29

#2
February 2nd 08, 11:08 AM posted to microsoft.public.excel.worksheet.functions
 Charles Williams external usenet poster Posts: 968
how do I get excel to add,then average numbers with two decimals?

If they all start with 3 minutes then you can convert them to times by Edit
Replace 3. with 3:
Then format them with a custom format hh:mm:ss.00 so you can see whats
happening

Then use this array formula (assumes best means smallest time)

=AVERAGE(SMALL(\$A\$1:\$A\$4,{1,2,3}))

you need to enter this array formula using Control-Shift-Enter

Charles
__________________________________________________
Outlines for my Sessions at the Australia Excel Users Group
http://www.decisionmodels.com/OZEUC.htm

"wenz324" > wrote in message
...
> ie I need to tally little athletics results. I need the average of the
> best
> three scores.
> These are times (minutes, seconds and hundredths of seconds) and I now
> realise we probably should have been entering using colons throughout the
> season. I'm trying to fix the problem without having to manually change
> the
> results into times.
>
> 3.06.51
> 3.11.43
> 3.22.56
> 3.23.94
> 3.56.29
>

#3
February 2nd 08, 11:23 AM posted to microsoft.public.excel.worksheet.functions
 external usenet poster Posts: 418
how do I get excel to add,then average numbers with two decimals?

wenz324" wrote:
> I need the average of the best three scores.
> These are times (minutes, seconds and hundredths of seconds) and I now
> realise we probably should have been entering using colons throughout the
> season. I'm trying to fix the problem without having to manually change the
> results into times.

You might consider converting the "times" first. The "manual" process might
not be as complicated as you think. If the times below are in A1:A5, put the
following formula into B1 and copy down through B5:

=--SUBSTITUTE(A1, ".", ":", 1)

Select and copy B1:B5, then paste-Special Value back to A1:A5, and format
A1:A5 as Custom "mm:ss.00". You can now remove B1:B5, which might show
#VALUE errors now anyway.

Now, you can average them in the normal manner. For example, for the
average of the best of 3, enter the following as an array formula
(ctrl+shift+Enter):

=AVERAGE(LARGE(data,ROW(A1:A3)))

Alternatively, the following regular (non-array) formula does the same thing:

=SUMPRODUCT(LARGE(data,ROW(A1:A3))) / 3

You will need to format the result as Custom "mm:ss.00".

HTH.

----- original posting -----

"wenz324" wrote:
> I need to tally little athletics results. I need the average of the best
> three scores.
> These are times (minutes, seconds and hundredths of seconds) and I now
> realise we probably should have been entering using colons throughout the
> season. I'm trying to fix the problem without having to manually change the
> results into times.
> 3.06.51
> 3.11.43
> 3.22.56
> 3.23.94
> 3.56.29

#4
February 2nd 08, 11:24 AM posted to microsoft.public.excel.worksheet.functions
 Gary''s Student external usenet poster Posts: 11,058
how do I get excel to add,then average numbers with two decimals?

With data in A1, In B1 enter:
=TIME(0,LEFT(A1,1),MID(A1,3,2))+RIGHT(A1,2)/(24*600*600)
and format as Custom m:ss.00

--
Gary''s Student - gsnu200767

"wenz324" wrote:

> ie I need to tally little athletics results. I need the average of the best
> three scores.
> These are times (minutes, seconds and hundredths of seconds) and I now
> realise we probably should have been entering using colons throughout the
> season. I'm trying to fix the problem without having to manually change the
> results into times.
>
> 3.06.51
> 3.11.43
> 3.22.56
> 3.23.94
> 3.56.29
>

#5
February 2nd 08, 11:28 AM posted to microsoft.public.excel.worksheet.functions
 external usenet poster Posts: 418
how do I get excel to add,then average numbers with two decima

Errata....

I wrote:
> For example, for the average of the best of 3, enter the
> following as an array formula (ctrl+shift+Enter):
> =AVERAGE(LARGE(data,ROW(A1:A3)))
> Alternatively, the following regular (non-array) formula does the same thing:
> =SUMPRODUCT(LARGE(data,ROW(A1:A3))) / 3

I guess the best of 3 is SMALL(), not LARGE().

Also, "data" should be A1:A5. An artifact of cut-and-pasting from my
worksheet. Note that "ROW(A1:A3)" is simply a way of getting the numbers 1
through 3. It has nothing to do with the data in column A.
#6
February 2nd 08, 06:23 PM posted to microsoft.public.excel.worksheet.functions
 T. Valko external usenet poster Posts: 15,768
how do I get excel to add,then average numbers with two decimals?

> =AVERAGE(SMALL(\$A\$1:\$A\$4,{1,2,3}))
>you need to enter this array formula using Control-Shift-Enter

No need to array enter.

--
Biff
Microsoft Excel MVP

"Charles Williams" > wrote in message
...
> If they all start with 3 minutes then you can convert them to times by
> Edit Replace 3. with 3:
> Then format them with a custom format hh:mm:ss.00 so you can see whats
> happening
>
> Then use this array formula (assumes best means smallest time)
>
> =AVERAGE(SMALL(\$A\$1:\$A\$4,{1,2,3}))
>
> you need to enter this array formula using Control-Shift-Enter
>
> Charles
> __________________________________________________
> Outlines for my Sessions at the Australia Excel Users Group
> http://www.decisionmodels.com/OZEUC.htm
>
> "wenz324" > wrote in message
> ...
>> ie I need to tally little athletics results. I need the average of the
>> best
>> three scores.
>> These are times (minutes, seconds and hundredths of seconds) and I now
>> realise we probably should have been entering using colons throughout the
>> season. I'm trying to fix the problem without having to manually change
>> the
>> results into times.
>>
>> 3.06.51
>> 3.11.43
>> 3.22.56
>> 3.23.94
>> 3.56.29
>>

>
>

#7
February 2nd 08, 07:38 PM posted to microsoft.public.excel.worksheet.functions
 Ron Rosenfeld external usenet poster Posts: 5,651
how do I get excel to add,then average numbers with two decimals?

On Sat, 2 Feb 2008 02:27:01 -0800, wenz324 >
wrote:

>ie I need to tally little athletics results. I need the average of the best
>three scores.
>These are times (minutes, seconds and hundredths of seconds) and I now
>realise we probably should have been entering using colons throughout the
>season. I'm trying to fix the problem without having to manually change the
>results into times.
>
>3.06.51
>3.11.43
>3.22.56
>3.23.94
>3.56.29

If you don't want to convert your data, you could use these **array-entered**
formulas:

=SUM(--("0:"&SUBSTITUTE(A1:A5,".",":",1)))

Average the best three (I have assumed that "best" means "lowest")

=AVERAGE(SMALL(--("0:"&SUBSTITUTE(A1:A5,".",":",1)),{1,2,3}))

Format your results as something like [m]:ss.00
--ron

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