(2) 实验标准偏差 ( experimental standard deviation ) 又称标准偏差估计值,是指在对同一被测量进行nc次测量时,表征测量结果分散程度的参数S。
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平均值的实验标准偏差 experimental standard deviation of the mean
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首先对被分析物料实验测定取样标准偏差,或进行一些有关的化学测试和物理测试,以确定取样常数。
The sampling constants can be estimated by means of sampling relative standard deviation or some relevant chemical and physical informations.
实验结果表明该方法提高了图像的熵和标准偏差。
Entropy and standard deviation are used to evaluate image fusion performance.
实验也证明,取样方差估计值的标准偏差与样本数目的平方根之积可近似为一常数。
It revealed that the product of the standard deviation of the estimated sampling variance and square root of the number of samples was a constant.
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