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11-07-2013, 08:59 AM | #31 |
Would an idiot do that?
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WTF, cdcox is like one of the biggest number geeks here. And yeah, if you compare NFL teams based on 2003-2007 and 2008-2012, the points would less likely be all over the map.
(that's a compliment, btw)
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11-07-2013, 09:07 AM | #32 |
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The number of trials absolutely plays a factor. Every team tends toward the mean in a longer season. You would NEVER see a team go undefeated in baseball no matter how good they were, for example.
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11-07-2013, 09:17 AM | #33 |
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LOL @ Buzz TinBrain telling cdcox something went over his head.
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11-07-2013, 09:22 AM | #34 | |
Now you've pissed me off!
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The Steelers have six SBs, the 49ers and Cowboys have five. 16/47
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11-07-2013, 10:10 AM | #35 |
Kind of a mod
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11-07-2013, 10:27 AM | #36 |
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it's fourteen season of data -- why is that not a large enough sample size? also, this is an abstract comparison, but to say the number of games is going to change the final conclusion is nuts, imo.
14 x 16 = 224 games, that's a good sample size. when all teams are included, the size increases to 224 x 16 = 3,584 games which is more than enough sample data imo. if you reduced the numbers in each sport to 3,584 games, I don't think these charts will change much, really. in fact, it may make football even more varied, by comparison.
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11-07-2013, 11:52 AM | #37 | |
www.nfl-forecast.com
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Think of it this way: if Tiger Woods hit two golf balls twice in a row under exactly the same conditions, they might land somewhat close to one another but not exactly in the same exact spot. There is some randomness that factors into his golf swing. In an NFL game there are probably millions of these golf-ball sized random variations. So if the Chiefs were able to replay all of their games this season, they would not finish 9-0 every time. There are enough random variations in any given game to allow the outcome to change if it were to be "replayed". If we would represent the Chiefs on the graph they would be 9-0. However if we replayed their season 100 times I suspect that on average we would be about 7-2. This is my guess of our True Strength. So if the season were now over, and we were to play another 9 game season in a year we would not necessarily expect the Chiefs to win 9 games again even if the rosters all remained in tact and the schedules were exactly the same. We'd expect some random variation. If next year the Chiefs went 5-4 with the same exact conditions, it wouldn't be that surprising. To a large degree we just don't know how good the Chiefs really are. On the other hand if the Chiefs and played 160 games so far this season and had won 155 of them, we would know the Chiefs are really, really good. We would be shocked if a year from now they kept the same roster, every other team kept the same roster and we played the same schedule and went 90-70. Over a 160 game season the record will be a much better indicator of a team's True Strength than a 16 game season. That is why the variance of MLB will have a smaller variance than the NFL, and why sample size matters. |
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11-07-2013, 11:52 AM | #38 | |
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11-07-2013, 12:13 PM | #39 | |
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The other key piece is environment. Because there are only 16 games, luck of scheduling impacts records. One injury can decimate an entire season. Just too many things in the Nfl beyond how good a football team actually is that impacts record. |
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11-07-2013, 12:16 PM | #40 |
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A bad year in baseball is 62-100.
A good year in baseball is 100-62. A bad year in football is 2-14. A good year in football is 14-2. A bad year in baseball winning percentage wise in the NFL is 6-10. A good year in baseball winning percentage wise in the NFL is 10-6. That should explain why baseball is in a nice box in the middle and the NFL is spread out. |
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11-07-2013, 02:00 PM | #41 | |
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I don't claim to be one, and I, nor anyone else in this thread disputed the statistical data of the OP. you are wrong to call the gist of this info "statistics". cross referencing this data is an abstract comparison, not statistics. some folks get confused comparing apples with oranges. they forget apples are apples and oranges are oranges. they forget the fact this kind of comparison is only that -- comparison, complete with a set of opinions that are loosely based in fact, but are not statistics
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11-07-2013, 03:52 PM | #42 | |
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11-07-2013, 05:09 PM | #43 |
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Those graphs are kinda hot.
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11-07-2013, 07:25 PM | #44 |
Would an idiot do that?
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You ****ers got me curious.... so, this is every team, comparing win % of 2002-2006 to 2007-2011.
The outlier at the bottom is the Rams (haha!) and the closest one to it is the Chiefs ( ...and it would have been worse had I included 2012). The two biggest improvements were the Texans and Saints.
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