Having trouble with a variance calculation, NLHE

[TNixon]

Sorry for the crosspost, but I'm not sure if the trouble here is in my understanding on how to set up a variance equation, or an error in my algebra transformations, so it seemed appropriate to hit both the probability and the math forums.

Here's a link to the actual post:

http://forumserver.twoplustwo.com/showfl...=0#Post11903909