Tickets 100, including 30 theater tickets, and Party A and Party B successively drew 1 ticket. It is proved that the winning probability of theater tickets and the order of drawing tickets are differe

Tickets 100, including 30 theater tickets, and Party A and Party B successively drew 1 ticket. It is proved that the winning probability of theater tickets and the order of drawing tickets are different. Assuming that A draws first, the probability is 3/ 10, and the probability of B is the sum of two situations (A draws theater tickets first +A draws theater tickets first), and the probability is 3/10x29/99+7/10x30/99 = 297/990 = 3.