Mathematical problems in the fifth grade of coin toss
It must be unfair. Xiao Xin and Xiao Ming have only a quarter chance of winning, while Liang Xiao has only a half chance. It can be designed as follows: Xiao Xin and Xiao Ming have thrown two coins. If two coins face up or face up, Xiao Xin wins if they face up for the first time, otherwise Xiao Ming wins. Xiao Liang hasn't changed. . .