Help anyone:

How to prove

cov(x,y)=E[(x-Ex)(y-Ey)]=E[(x-Ex)y]=E[X(Y-EY)]

Thanks

Results 1 to 3 of 3

- October 4th 2012, 04:20 PM #1

- Joined
- Oct 2012
- From
- canada
- Posts
- 14

- October 4th 2012, 05:29 PM #2

- Joined
- Sep 2012
- From
- Australia
- Posts
- 3,619
- Thanks
- 592

- October 5th 2012, 07:08 PM #3

- Joined
- Oct 2012
- From
- canada
- Posts
- 14