Hi David and Mike,
Your statistical information is very detailed, and I know exactly where you are coming from, in that, if I were to pick 38 as my core number, I could be out of luck, the balance could right it'self, and we must remember that statistically all numbers have an equal chance, but this is not absolutely true, it depends on what rank and order the numbers went into the machine, and also the amount of time the balls were tumbled before being selected, and there is also a bias in computer random number generation, because it depends on what integer the processor dealt with the very last time numbers were generated on it. So there's some more work for both of you to look into. Hmmp, I still need to win the lottery though! Have fun.