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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
AdamLegge
How does one find out their RD?
Could anyone do a analysis on this game
by LongIslandMark a few minutes ago
Can unrated players win awards in FIDE tournaments?
by makalumhenders a few minutes ago
Computer Analysis says 1...c5 is an Inaccuracy ???
by netzach 3 minutes ago
Immortal?
by Tartarus_BW 5 minutes ago
5/19/2013 - Mate in 2
by ChesBrainz 6 minutes ago
A game from London 1922
by MrDamonSmith 7 minutes ago
Where can I buy a chess set similar to the one used in Lyons 1990?
by CLINTEASTW00D 9 minutes ago
Mate in one
by Evinadabef 12 minutes ago
Downloading All Games At Once
by PowerVacuum 16 minutes ago
1. e4 b6 2. d4 Bb7 3. Bd3 f5?!
by Randomemory 16 minutes ago