The definition and quality of conditional probability of fuzzy events were given. The total probability formula of fuzzy events in general division of sample space was also given.
给出f事件的条件概率定义和性质，并在基本空间普通划分下给出f事件的全概率公式。
During the statistical process of density, the probability density distribution of the rock mass structural plane in sample space is assumed as normal distribution.
在密度统计过程中，把岩体结构面样本在空间上的概率密度分布假设成正态分布。
During the statistical process of density, the probability density distribution of the rock mass structural plane in sample space is assumed as normal distribution.
在密度统计过程中，把岩体结构面样本在空间上的概率密度分布假设成正态分布。
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