Backup diff of 2007-12-26 (No. 1)

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  • 1 (2007-12-26 (Wed) 10:16:49)
  • 2 (2007-12-26 (Wed) 15:18:38)
  • 3 (2008-01-10 (Thu) 20:59:15)

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- 「平均のひとつ覚え」から卒業 ～社会人なら知らなきゃ恥ずかしい統計の基礎知識
--  http://web-tan.forum.impressrd.jp/e/2007/12/25/2006