What are the chances of winning the lottery first and then winning?

When drawing lots, the chances of winning are equal to those of drawing lots later.

No matter how you draw lots, the final result is nothing more than the arrangement and combination of n lots. Whoever draws lots first is fair. No matter how these people draw lots, the final result is nothing more than the arrangement and combination of n lots. In this arrangement, no position is more special than other positions, so the possibility of winning the ticket in each position must be equal.

We randomly select two of the n tags in sequence, and one * * has n(n- 1) methods, which is our total sample space. In these arrangements, to ensure that the second person wins the lottery, he has m kinds of lottery methods.

In this way, the first person can choose from the remaining n- 1, and then there are m(n- 1) ways to ensure that the second person can draw. Therefore, the "probability of the second person drawing" is m(n- 1)/n(n- 1), which is still equal to m/n.

The basic principle of lottery

Most of the poems drawn by local folk lottery are composed of 28 signs (actually 27 signs 1 station), while temples, churches, temples and temples mostly use 60 signs or 100 signs for divination, because the number of folk signs is represented by 28 stars.

The number of 60 trillion is represented by 60 Jia Zi, and the number of 100 trillion comes from the total number of 64 hexagrams and 6 hexagrams in the eight diagrams, such as 8×8+6×6= 100. Some people think that the number 100 is based on the sum of 65438+ February, 150% solar terms and 72 cycles.

Traditionally, after burning incense, the lottery taker recited the purpose and content of his prayers in front of the idol, then randomly drew a lot from the lottery box (in some places, the lot was drawn by shaking the lot), and then threw the "holy grail" (called a cup in some places) on the table on the ground. If there are heads and tails, consider it as this sign, otherwise it will be redrawn.