I put together a graph showing the hand values for 1M CP2-7 hands:
http://markgritter.livejournal.com/354410.html
What I find interesting is that no hand in the sample has a value less than -3 points, while there are a few hands with values between +3 and +4. (quads/wheel/trips works well.)
As a result, although the median value of the set is close to zero (0.007), as it should be, the mean value is slightly negative (-0.07).
Can anybody explain this result? (I.e., prove that no hand scores less than -3 on average?) Does the same thing occur in normal CP?