| 释义 |
ex·pect·ed value AHD[ĭk-spĕkʹtĭd] D.J.[ɪkˈspektɪd]K.K.[ɪkˈspɛktɪd]n.（名词）- The sum of all possible values for a random variable, each value multiplied by its probability of occurrence.数学期望值：随意可变量各种可能的价值的总额，每一种价值都承认它出现的可能性
- The integral of the probability density function and a continuous random variable over its range of values.期望值：概率函数和超过其值域的随机变量的整数解
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