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no2ss · 02-21-2002, 03:07 PM

2) How can you take a .556 OBP against RHP, and .500 OBP against LHP, and end up with a .607 OBP overall? Do we have pitchers using secret third arms that don't show up in the stats?

Sounds like it's probably a case of Simpson's Paradox, which is a pretty well known statistical "trick" that makes two separate sets of data seem confusing when they're combined.

<a href="http://www.google.com/search?hl=en&q=simpson%27s+paradox">http://www.google.com/search?hl=en&q=simpson%27s+paradox</a> for more info.

02-21-2002, 03:07 PM	#16
no2ss Minors (Rookie Ball) Join Date: Dec 2001 Posts: 22	2) How can you take a .556 OBP against RHP, and .500 OBP against LHP, and end up with a .607 OBP overall? Do we have pitchers using secret third arms that don't show up in the stats? Sounds like it's probably a case of Simpson's Paradox, which is a pretty well known statistical "trick" that makes two separate sets of data seem confusing when they're combined. <a href="http://www.google.com/search?hl=en&q=simpson%27s+paradox">http://www.google.com/search?hl=en&q=simpson%27s+paradox</a> for more info.