The winning rate of the two-color ball is extremely low, second only to the lottery: the winning probability of the second prize of the two-color ball is 1 1.8 million, which is already very low, so the winning probability of the first prize is 1.772 million, which is several times more difficult, but the two-color ball wins every period. This can only be said to be luck plus luck, plus a little skill and persistence. There is not much technical content here. The person who wins the prize every time basically buys it every time and has his favorite number. Other calculation and speculation methods are just for reference. After all, in the face of such a huge base, how to calculate the investment is huge, and the probability of winning the prize has not decreased much. So buying lottery tickets is a state of mind. Spend 10 yuan to buy a dream.