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R-Squared or Coefficient of Determination http://www.khanacademy.org/video/r-squared-or-coefficient-of-determination -------------------------------- تربيع Rيتناول هذا الفيديوأمثلة لايجاد معامل التحديد للخط و --------------------------------- لمؤسسة شركاء في التنمية المستدامة -- فلسطين http://psdpal.org