Odds of AA running into KK at full table?

[aloiz]

Yea the 90 was a typo. And I understand how including the possibility of a second AA when computing P(at least 1 KK | only 1 AA) skrews things up. I'm sure there's a way to figure it out using conditional prob, but now that I see how complicated it is I like your solution more and more, which by the way was very clear and easy to understand.

thanks,
aloiz