...sch模型的真分数等值:首先根据两个不同样组计算出锚题的b参数(难度),之后,采用平均数和标准差方法( Mean and Sigma Method)计算出参数转换系数,以此系数对b参数进行转换,最后计算出对应的测验分数;
基于4个网页-相关网页
面板修正标准差方法 Panel Corrected Standard Error ; PCSE
板修正标准差方法 Panel Corrected Standard Errors
是隐含标准差方法 ISD ; implied standard deviation
一种是隐含标准差方法 implied standard deviation
非标准有限差分方法 NSFD
接著利用统计的方法,建立出波包标准差以及各外加条件的模型。
And try to establish a model of standard deviation of wave packet by using statistical methods.
方法:分析样品中菌落总数不确定度的来源,采用合并样本标准差的方法来评定菌落总数的不确定度。
Methods: the source of measurement uncertainty of the colony determination in fishmeal was analyzed and the method of uniting standard deviation was applied to determine the uncertainty of the colony.
对于从属随机变量统计特征的确定,本文介绍了一种精确高效的确定其均值和标准差的方法。
A new method which can efficiently and accurately calculate the mean and standard deviation of a dependent random variable is proposed.
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