概率之和等于1
Probabilities Sum to One
概率 Probability
本领域主题 / Topics
0到1概率标尺
The 0-to-1 Probability Scale
对立事件
Complementary events
实验概率
Experimental probability
概率标尺
The Probability Scale
集合与维恩图
Sets & Venn Diagrams
树形图
Tree diagrams
维恩图与结果计数
Venn Diagrams and Counting Outcomes
可能性语言
Likelihood Language
可能性排序
Ordering Likelihoods
用分数表示概率
Probability as a Fraction
简单的可能性实验
Simple Chance Experiments
计算简单概率
Calculating Simple Probability
实验概率与理论概率
Experimental vs Theoretical
等可能结果
Equally Likely Outcomes