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Old 10-30-2007, 04:08 PM
bevo_stevo bevo_stevo is offline
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Join Date: Aug 2007
Location: Texas
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Default Re: ***NBA FUTURES THREAD***

[ QUOTE ]
I don't know any thing about the NBA, but I want to get a little action down so I took pinny's line as the true line, assumed a Poisson distribution and then just looked for value at the two books I have right.

[/ QUOTE ]

Requisite ImStillBen response: "No"

Wong is just plain wrong about using Binomial distributions to model season wins in sports where they play a lot of games. For example, the 1995-96 Spurs won 59 games. With many returning players it would not be unreasonable to expect them to win 53 games in the 96-97 season so lets assume that that was the expected average number of games for a hypothetical Pinny line.

During the 96-97 season the Spurs won 20 games, for those keeping track at home, thats a 1 in 5 million event (to win 20 or fewer games). That event should only happen once in about 200,000 seasons.

So is it possible that we witnessed a 1 in 200,000 year event? No, not really - the truth is that the standard deviation is much higher than what Poisson gives you, and as a result RSW totals close to the posted lines occur less frequently than Wong's theory predicts.
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