If you only play a game once or twice, then the results might be very different from your predictions. However if you play lots of times, you should find that things "average out" and overal you get what you expected (查看原文)
You are actually more likely not to get 5 heads and 5 tails! If I started to toss the coin again ten times, what are the exact chances of getting five heads and five tails" The answer to that is 24.61% (查看原文)
![[英国] 菲利普·里夫](https://img3.doubanio.com/view/celebrity/m/public/p1528342705.92.jpg)
菲利普·里夫 绘者
2 有用 sciencecat 2020-08-13 07:35:06
适合小学生，三四年级就可以开始读。不涉及定量计算，而是用有趣的故事（历史上真实的故事也不少）来告诉孩子数学可以有什么用，数学可以有多好玩。
1 有用 JHHJ 2014-05-11 20:40:24
好看到不像是科普讀物的書，即使是在今天還是強烈推薦
1 有用 133×133-17261-1 2008-03-08 22:27:00
科学很恐怖
2 有用 sciencecat 2020-08-13 07:35:06
适合小学生，三四年级就可以开始读。不涉及定量计算，而是用有趣的故事（历史上真实的故事也不少）来告诉孩子数学可以有什么用，数学可以有多好玩。
1 有用 JHHJ 2014-05-11 20:40:24
好看到不像是科普讀物的書，即使是在今天還是強烈推薦
1 有用 133×133-17261-1 2008-03-08 22:27:00
科学很恐怖