<- What the heck happened with that thing? The transformation from the previous step, to this one, and the next step?

By the way on the x on the left hand side there should be a little bar on top, indicating average.

Thanks for any help. :D

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- February 13th 2008, 09:24 AMjanvdlHelp with proof of Arithmetic mean

<- What the heck happened with that thing? The transformation from the previous step, to this one, and the next step?

By the way on the x on the left hand side there should be a little bar on top, indicating average.

Thanks for any help. :D - February 13th 2008, 09:36 AMPlato
Is this what you are missing?

- February 13th 2008, 09:39 AMjanvdl
- February 13th 2008, 09:45 AMPlato
Is this what you are missing?

- February 13th 2008, 09:52 AMjanvdl