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AlvinMcMath
what is it? i'm not starting a forum discussion, but can't find a place to post a simple question.
erik
likesforests
Ratings deviation. If you know statistics, it's like the standard deviation.
Your rating is 1532 and your RD is 113. That means with 95% confidence your true strength is between 1306 (rating - 2 x RD) and 1758 (rating + 2 x RD).
My rating is 1770 and my RD is 188. That means with 95% confidence my true strength is between 1394 (rating - 2 x RD) and 2146 (rating + 2 x RD).
The more often you play, the lower you RD becomes.
thank u- as a medical lab tech i am familiar w/SD, & u'r answer makes sense, AND is more illuminating than the article mentioned by someone else. luv trees? u can't see my house on Google maps because of the pecan trees.
thank u. kinda deep for an retired math dude, but the essense is explained well
Joe14
leggy
How does one find out their RD?
Have your chess skills helped you in real life?
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Chess Player of the Month April 2012
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