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独立性是概率论的基本概念之一.现实世界中存在不少事件是相互独立的或者是近似相互独立的.有了独立性概念可使一些实际问题的概率模型和具体计算都得到简化.可见对中学生讲清独立性概念,运用独立性解题是一个值得重视的教学过程.
Independence is one of the basic concepts of probability theory. There are many events in the real world that are independent or almost independent of each other. With the concept of independence, the probabilistic models and specific calculations of some practical problems are simplified. To clarify the concept of independence in middle school students, and to use independence to solve problems is a teaching process worthy of attention.