These days, given the record jackpot, the passive has become the "national sport", the accomplice of summer football league.
But you know how many are actually the possibility to guess the 6?
We start, however, some basic statistics. Launch a coin in the air: quit or quit cross head? Whatever the outcome I think that anyone of you know that the probability of leaving the cross is 50% and the probability of leaving the head is 50%. But if we run the coin 5 times and all 5 times leaves the head, according to you the sixth launch likely will be 50% for each side? The answer is absolutely yes! Because the coin has no "memory" of previous launches and every event is completely independent from the previous year, each time starts again from scratch.
Statistics shows that, for infinite (ie many many many) shots, the outcome "heads" will tend to 50% as the result, "cross". This does not mean that in 10 launches bait all 10 times the cross, less likely to "un po 'di testa e un po' a cross", but definitely possible.
We come to the passive. The probability of leaving the sestina is given by the following "strange calculation:

6! / (90 * 89 * 88 * 87 * 86 * 85) = 720 / 448282533600 = 1 / 622614630

Or 1 chance out of about 622 million. Ie there are 622 million possible sestino and one is "just right" is much more likely to be struck by lightning!

Dispel the myth a few hours.
Extraction Tuesday leaving the numbers 2, 15, 32, 45, 76, 89. The probability of pulling out of these numbers was, as we have said above, 1 in 622 million. Well, what is the probability that the same numbers come out even after the extraction? The right answer is always 1 in 622 million, as any other sestina. What is true of the currency, which has no memory, goes for the numbers of passive.
And chances are that in any competition, the sestina is winning 1, 2, 3, 4, 5, 6? Well done, you have understood the mechanism: always 1 in 622 million, as any other set of 6 numbers between 1 and 90.
There are techniques that take the lot and the passive are games that follow very strict rules of statistics and, Remember this well, why are mathematically studied the dealer always wins, that is, the games are "not fair", where winning is always greatly pù unlikely to lose.
Then play the passive and the lot just for fun: 1 euro invested in a dream can be well spent 1 euro!