However, the staff pointed out that the above differences would exist regardless of the method of "5+4" or "8+ 1", but this difference did not change the overall winning rate, and the overall winning rate was 9 ‰. Moreover, because the lottery is random, the probability of falling in the interval with high winning rate or falling in the interval with low winning rate is equal for all subscription numbers. From this perspective, the lottery method widely used now is fair. "
I only took the first paragraph and the last paragraph, and I don't know if I am satisfied.