gee...that's pretty snarky in its own right there my friend...I'm actually shocked that some minor stats could get under your skin to such a degree...which says a lot about you to be honest...
but more to the point and to answer you and the poster above you to which you refer here's a lengthy article regarding the probability of getting a streak of heads 20 times in a row supported by some very sophisticated math:
http://marknelson.us/2011/01/17/20-h...-are-the-odds/
for those not willing to read it the author concludes that "So at last, we know the correct result. If you flip a coin a million times,
you have a 38% chance of seeing 20 heads in a row. A long way from the certainty claimed by the New York Times, and a bit off from my initial 60% value".
And contrary to the assertion of the 1st responder the fact that the rolls only continue if heads occurs on the prior roll does not mean that the rolls aren't independent of each other only that you stop rolling once you get tails OR hit max level. The odds of rolling heads on each subsequent roll remains 50% because the "roll" has no memory of the prior result and is otherwise independent of it as long as the condition to continue rolling (getting a head on a previous roll) is met.
Now, obviously, Blizzard would never use a 50/50 chance mechanism to improve your gear because of the fact they understand that there is a 38% of "rolling" heads 20 times in a row.
But not using a 50/50 system in reality does not alter the fact that the explanation provided grossly understated the possibility of maxing out the ilvl of a piece of gear using the system described.
also see these discussion about roulette:
http://www.kanzen.com/analysis.html http://math.stackexchange.com/questi...i-bet-to-black https://answers.yahoo.com/question/i...4070128AAgjzHv