Probability question?

[Justin A]

[ QUOTE ]
Wow I expected worse.

[/ QUOTE ]

It is worse. You'll often stay at the same level for a few spins while you break even by hitting 1 to 18. In other words you don't need to lose 7 consecutive spins, you just need to lose 7 before hitting on 3rd 12.

You are a 12/7 favorite to hit the 3rd 12 before losing on each spin, so you'll lose and move up a level 7/19. The chances of you losing 7 times before winning is 1 in 1085.