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What does a “sample size” mean?
Posted: 07 May 2009 07:17 PM   [ Ignore ]

any help would be greatly appreciated!

Posted: 08 May 2009 06:42 AM   [ Ignore ]   [ # 1 ]

A really quick example may help you out.

As a baseball fan, I am sure you don’t think it’s a big deal when a player hits .400 in a game, i.e. goes 2 for 5 in a single game. I am sure you’d be impressed if that same player hit .400 for a season, ie he collected 200 hits in 500 AB. That’s because 5 AB is not a big enough sample to tell us anything about a player’s true talent level. 500 AB however is a much bigger sample and thus a better reflection of a player’s true talent level.

The bigger the sample, the better reflection of a player’s true ability.

   
 
 
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