...立,表示非负的随机变量,是一个单边误差项,通常用来计算生产中成本无效率,这里假设服从非负截尾正态分布(Truncated normal),即: EMBED Equation.3 。
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乔木层株数随胸径分布呈现截尾正态分布。
Diameter distribution of tree stratum reveals truncated normal distribution.
根据截尾均值、平尾均值的定义和截尾正态分布,本文得到了这两种均值都是最或然估计量。
The maximum likelihood estimators(MLE) of means and standard deviations and the asymptotic distribution of likelihood ratio statistic are given.
本文提出用截尾正态分布作为单件、小批量生产的仪器零件、机器零件尺寸误差分布的理论模型。
A curtailed normal distribution as a theoretical model for the error distribution of size of the machine parts and instrument parts in single - part or small-lot production is proposed in this paper.
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