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等可能性事件概率是一种最基本的概型(古典概型),是整个概率论的基础,其他几种类型的概率都是在等可能性事件概率的基础上建立起来的,因此必须熟练掌握等可能性事件的概率的求法.
The probability of such probability events is a basic probabilistic model (classical model), which is the basis of the entire probability theory. Other types of probabilities are built on the basis of the probability of such probability events and must be proficient. The method of grasping the probability of such possible events.