Revision as of 16:42, 16 October 2008 by Wang97 (Talk)

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Let A=total amount of wages 

   W=avg wage
   Wd=avg difference between individual's wage and the avg wage

   E[Wi]=W1+W2+...+Wn=W
   E[Wdi]=[(W1-W)+(W2-W)+...+(Wn-W)]/n=Wd

B/c A=W1+W2+...Wn= $ \sum_{i=1}^n W $

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Alumni Liaison

Ph.D. 2007, working on developing cool imaging technologies for digital cameras, camera phones, and video surveillance cameras.

Buyue Zhang