Calling all Statisticians (sp?) - DPChallenge Forums

08/05/2004 04:02:42 PM · #1

Hey. I remember seeing a chart or some text here a while ago that showed how much a given score would/should/could deviate after a certain number of votes had been cast. Does anyone have that, or remember what thread it was in?

Canon EF-S 55-250mm f/4-5.6 IS

08/05/2004 07:43:27 PM · #2

Anyone?

Canon EOS-60D

08/05/2004 07:47:55 PM · #3

They can't hear you...

08/05/2004 07:48:42 PM · #4

I see math people...

KaDi

Canon EF-S 18-55mm f/3.5-5.6

08/05/2004 07:58:38 PM · #5

//www.dpchallenge.com/forum.php?action=read&FORUM_THREAD_ID=105672&highlight=chart
Do you mean that one?
It points to another in the first post....

Sorry about the long url!
(btw, I searched the forums for "chart" and found the Scores, Stats, and More Damned Lies thread)

Canon EF-S 55-250mm f/4-5.6 IS

08/05/2004 08:47:39 PM · #6

Thanks, those are close, but not quite what I remember. The thread I was thinking of had something like: "based on x examples, after y votes your score will only deviate by +/- 0.z"

I'll do some searching myself.

Ara

Canon EOS-60D

08/05/2004 09:19:15 PM · #7

Here are a bunch of charts and graphs that might entertain you while looking...

nicklevy

Canon EOS-350D Rebel XT

Tamron SP AF 28-75mm f/2.8 XR Di for Canon

08/05/2004 09:35:04 PM · #8

You divide the maximum difference in score a vote can put by the number of vote you have and this is the maximum deviation a vote can do. In exemple: If you have 100 vote. the maximum difference a vote can put is 9 (given your scor ise either 1 or 10). you then divide 9 by 100 (the formula is Max.diff./total vote) and the results is .9

Another exemple: if you have a score of say 4.5505. Then the maximum difference a vote can put if someone give you a ten is 5.4495 (10-4.5505) and let's say at this moment you have 167 votes then, (the formula is still Max.diff./total vote) the results will be 0.03 (5.4495/167) if I understand your question correctly.

I hope this help.

Message edited by author 2004-08-05 21:36:48.

David.C

Nikon AF Nikkor 50mm f/1.8D

08/07/2004 08:38:19 PM · #9

It isn't the one you are looking for, but I threw together a spreadsheet that probably contains close to the same information.

Vote deviation spreadsheet

To use it just enter your current number of votes and score into the fields. You can also flip to the chart sheet if you want to look it up yourself.

David