Yes you can use 1111111. The chance that you win is 50%, you do or you don't. Now the 50% is ofcourse a little joke. But there is some truth in it. Randomness

Yes you can use 1111111. The chance that you win is 50%, you do or you don't. Now the 50% is ofcourse a little joke. But there is some truth in it. Randomness doesn't mean the numbers change all the time. The probability that the numbers change is ofcourse very very high. But random doesn't equal change.