Two-color ball parity refers to the statistics of odd and even numbers in lottery tickets. A two-color ball lottery ticket has 33 red balls, of which 16 is odd and 17 is even. The blue ball has 16 balls, of which 8 are odd and 8 are even. We count these balls according to the odd-even nature and get the odd-even number distribution of this lottery ticket. When buying lottery tickets, you can choose a certain odd-even ratio to bet according to the previous data and your own prediction.

Regarding the selection of odd-even ratio of two-color ball, the research data shows that even-numbered balls appear more frequently. In the odd-even ratio between the blue ball and the red ball, the even ratio is higher than the odd ratio. In the actual purchase, players can consider the situation before the ball and choose to buy odd and even numbers.

When there is a big difference between the odd and even numbers of the two-color ball lottery, it can be regarded as a buying opportunity. Because the lottery bonus will decrease with the increase of the number of buyers, but for the lottery with a large difference between odd and even proportions, it means that the probability of winning is small and people's enthusiasm for buying will be relatively reduced, so there may be a greater chance of winning. When buying, you need to pay attention to diversifying risks and reasonably arrange the lottery amount.