[ba-poker] Math is hard, and sometimes harder to explain.

[William Chen <wchen_8369(deleted the rest)>]

Suppose in a particular game of poker for a particular
length session, the probability of you being dealt
four of a kind is 1/10.   Approximately what's the
chance that you get dealt 4 of a kind twice in the
same session? 

BTW, the answer is not 1/100--thee's a factor missing.
 What's the answer and give some intuition behind it. 
What's the chance of being dealt quads thrice in the
session?  

Bill.