It is indeed
I worked in a casino for years, and while it does suck getting below expected results, it happens. A lot. Just about as much as getting Above average results...imagine that lol.
The first building I went for was the Snowy Charming Tree, and I wanted 4 of them. took me 6 boxes to get all 4-- I could have made a thread about that, but that's just mean.
The chances of me getting such a good result are
0.2197265625%
math link
EDIT: In case you are wondering
@Synaka, the chance of you doing that badly is 0.3% which is very low, but you can expect 3 out of every 1,000 players to do just as poorly.
math link