Green Valley Ranch using unbalanced dice ...

Green Valley Ranch Casino near Las Vegas seems to be using unbalanced dice based upon roll data collected there in July, 2013:

467 Rolls broken down as follows

2's = 15

3's = 33
4's = 55
5's = 44
6's = 60
8's = 67
9's = 33
10's = 41
11's = 24
12's = 22

The 7's broke down like this:

6/1 = 40

5/2 = 20

4/3 = 13 

The Chi^2 test on those rolls is in the warning range. p = 0.000092, including the 7 splits provided.

The data suggests that sample was not collected from fair dice.

According to dwheatley as posted on Wizard of Vegas website ...
wizardofvegas.com/