In the lucky draw ceremony, the host will take out 1- 14 ping-pong balls and put them into the container. Four balls are randomly selected from 14 balls, regardless of numerical order. A * * can produce 100 1 possible combinations. Before the draw, the teams that didn't qualify for the playoffs had been ranked in reverse order according to the regular season record, and the corresponding combination number (probability) of winning the first prize was obtained. For example, 14 teams failed to make the playoffs this year. In this 14 team, the eagle with the worst record got 250 combinations, that is, there was a 25% chance to win the first place, and the wasp with the second worst record got 199, that is, 19.9% chance, and so on,/kloc-0.9%.