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《名师原创》(江苏教育出版社)一书中有这样一个问题:很多游戏与概率有关,比如同学们常玩的“石头·剪刀·布”游戏就是如此.请你计算在一个回合中分不出胜负的概率。
There is a problem in the book “Master Teacher Original” (Jiangsu Education Press): Many games are related to probability, such as the “stones, scissors, and cloths” game that students often play. Please calculate in one round. There is no chance of winning.