All videos from the Khan Academy website (www.khanacademy.com) on Statistics.
Updated till Nov. 2011.

001 Statistics_ The Average
002 Statistics_ Sample vs. Population Mean
003 Statistics_ Variance of a Population
004 Statistics_ Sample Variance
005 Statistics_ Standard Deviation
006 Statistics_ Alternate Variance Formulas
007 Introduction to Random Variables

The fate of a legendary boy, Temudjin, later Genghis Khan, who became the most powerful emperor of Mongolia. With his army conquered one of the largest empires of all time.