The chances someone gets dealt aces preflop at a 10 player table (only one person gets them):
2*10=20-->number of cards dealt out preflop
52-20=32-->number of cards not dealt
C(32,2)=561-->total number of 2 card hands that weren't dealt
[C(10,1)*C(4,2)*C(28,0)]/561=0.10695
0.10695*100=10.695% one person gets dealt aces preflop at a 10 handed table.
Now this seems too high; what did I do wrong?