平均大小为 3,131平方英尺,标准偏差为 655 平方英尺(标准偏差是一个描述差异的统计量度)。
The average size is 3,131 square feet, with a standard deviation of 655 square feet. (Standard deviation is a statistical measure of variance.)
本次调查经特别设计,引入经济计量学方法,以克服在受援公司类型上的任何系统偏差。
The survey was specifically designed to support an econometric approach designed to overcome any systematic bias in the type of assisted firms.
第三条零售商品经销者销售商品时,必须使用合格的计量器具,其最大允许误差应当优于或等于所销售商品的负偏差。
Article 3 When selling commodities, a retailer must use eligible instruments of measurement, and the allowed maximum error shall precede or be equal to the minus deviation of the commodities sold.
沥青混合料的沥青含量偏差主要来自生产时的计量误差、配比偏差、拌和均匀性及检测时的试验误差,文章对这些影响因素进行了分析。
Asphalt content errors in asphalt aggregate mainly come from metering errors, grading errors, mixing homogeneity and measurement errors. These influencing factors are analyzed in the article.
鉴于音速喷嘴在我国气体流量计量领域内的重要地位,为消除系统偏差,需要确定适合我国的湿度修正方法。
Considering the importance of sonic nozzles in the field of gas flow measurement, a suitable humidity correction method is required in order to eliminate the systematic error.
给出了分子已知情况下比率估计量的偏差和均方误差以及均方误差的估计,并对两类比率估计量进行了比较。
In this paper, the bias of the ratio estimator and the estimate of mean square errors of this estimator with known numerator have been compared and discussed.
当我们计算极差,四分点离差和平均绝对偏差时,答案的计量单位与数据单位量相同的。
Earlier, when we calculated the range, the interquartile deviation, and average absolute deviation, the answers were expressed in the same units as the data itself.
适用于检查7级或低于7级精度的内外齿合直齿与斜齿圆柱齿轮的周节偏差。操作简便,易于维修,可供各工厂计量室及车间使用。
This tester is suitable to measure accuracies of pitch deviation with inside and outside straight helical circular gear among seventh degree. Easy to operate and maintenance.
给出了二阶比估计量的偏差、估计量的均方误差以及均方误差的估计。
For the ratio estimate in two-stage sampling, the bias and mean square errors(MES) of the estimater value have been obtained, and the estimater value of the MSE has been given.
给出非参数回归模型中估计量的渐近偏差和渐近方差,并在适当条件下利用大小分块的思想获得了该估计量的渐近正态性。
Given the asymptotic bias and the asymptotic variance of estimation, moreover obtained the asymptotic normality of the estimation under certain condition using small-block and large-block arguments.
给出非参数回归模型中估计量的渐近偏差和渐近方差,并在适当条件下利用大小分块的思想获得了该估计量的渐近正态性。
Given the asymptotic bias and the asymptotic variance of estimation, moreover obtained the asymptotic normality of the estimation under certain condition using small-block and large-block arguments.
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