标准离差

不稳定的股票会有一个高的标准离差。

A volatile stock would have a high standard deviation .

根据标准离差，优选组合出最优模型。

Based on the standard deviation method , the optimum model can be selected .

本文对方波注入法取得的晶体管电磁脉冲损伤阈值数据进行了分析，采用界限范围标准离差（BSD），进行损伤阈值下限范围估计。

The data of damage threshold of a transistor by electromagnetic pulses were obtained with square wave injection and analysed . An evaluation of the lower limit range of the damage threshold was made using the boundary standard difference ( BSD ) .

它通常通过计算某特定投资的历史回报或平均回报的标准离差来衡量（测定）。

It is usually measured by calculating the standard deviation of the historical returns or average returns of a specific investment .

方法用标准离差法将27省市7~18岁汉族儿童少年的11项形态、机能和素质指标与全国平均水平比较，进行体质综合评价。

Methods A comparative study was made on the 11 indices of physical morphology function and athletic ability between 27 provinces and the average of Chinese children and a synthetical evaluation was also made .

最佳的直线和最可能的原始地质储量和水侵系数，可以利用最小的标准离差和最大的相关系数法加以确定。

The best straight line , and the most possible values of originally in-place and water influx coefficient can be determined by the method of the minimum standard deviation and the maximum correlation coefficient .

本文利用人均GDP的标准差和离差来测算青海省46个县域经济的绝对差异和相对差异，分析了1998-2006年青海省区域经济差异的时间变化特征。

This article uses average per person GDP the standard deviation and the deviation surveys the Qinghai Province 46 county territory economy the absolute difference and the relative different , has analyzed 1998-2006 year Qinghai Province regional economies difference time variation characteristic .

以人均GDP为指标，采用标准差、离差系数、偏态系数，定量分析了重庆直辖以来区域经济差异的变化，获得了GDP增长率与经济差异之间的关系曲线，并对其进行了分析。

The changes of the regional economic difference of Chongqing are analyzed in the paper with per capita GDP , the standard deviation , coefficient of deviation and coefficient of skewness . Also , the causes and current situation of Chongqing province regional economic are analyzed .