He was subsequently challenged that the die was biased.
Very rigorously test to see if there are grounds to substantiate this claim; don't accept just two or three trial runs. Are you able to offer a theoretical model consistent with your findings?
Test "Snake-Eyes" Joe's Die with this simulator which has a run of 60,000 at a time:
| No: | 1 | 2 | 3 | 4 | 5 | 6 | Total |
| Scores | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Note: the data changes with each subsequent mouse-over visitation to the link.
