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  • (cur | prev) 19:41, 9 December 2008‎ Choi4 (Talk)‎ . . (205 bytes) (+1)‎
  • (cur | prev) 19:40, 9 December 2008‎ Choi4 (Talk)‎ . . (204 bytes) (+204)‎ . . (New page: To find cov(X,Y) E[XY]=E[(Y+N)*Y]=E[Y^2]+E[Y]*E[N] (Y and N are independent) E[Y^2]= var[Y]-(E[Y])^2= 0 E[XY]=0 cov(X,Y)=E[XY]-E[X]*E[Y]= - (1/lamda)^2 I solve cov(X,Y) in this way...)
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Basic linear algebra uncovers and clarifies very important geometry and algebra.

Dr. Paul Garrett