variance of sum是什么意思

网络释义

用法例句

In this paper,the sum of squares of an a-level factor is decomposed to a-1 sums of squares of mutually orthogonal contrasts,such that the total variation sum of squares is decomposed to a parts including the residual sum of squares.

本文把a水平因子的平方和分解成相互正交的a-1个对照的平方和,这样总变差平方和就可以分解成a个部分(包括残差项),然后又将该分解方法推广到了多因子的情形,并通过因子平方和的分解找到了多因子交互效应对应的对照向量,这使得多水平因子交互效应的计算和解释更加容易,也为方差分析带来了更多的方便,最后给出了几个应用示例。

Research on the random error properties of FOG based on Total Variance;

基于总方差方法的光纤陀螺随机误差特性研究

Total variance is a newly developed statistical tool for frequency stability analysis.

总方差 (Totvar)是一种用于频率稳定度分析的一种较新的统计工具。

These random error properties were analyzed with a total variance method,and a stochastic model was built up.

分析了光纤陀螺的随机误差特性的总方差特征,建立了光纤陀螺的随机模型,给出了各种随机噪声的仿真方法,提出了模拟光纤陀螺随机漂移的方法。

The two principal components explained 90.6% of the total variance of the flavors in Jinhua ham.

第一和第二主成分总计解释了金华火腿风味成分变化总方差的90.6%.

Empirical Likelihood Ratio Confidence Regions for the Differences of Two Populations Variance

两总体方差差异的经验似然置信区间

The difference between such totals, either on the credit or the debit side.

收支差额无论是贷方还是借方在总数上的差额

To compute the difference between the debits and credits of(an account).

计算收支差额计算借方和贷方（在总数上）的差额

The method focuses on minimizing the ensemble mean square error of the estimation.

该方法可以估计的总体均方误差最小。

Realizing the Test of Bartlett Homogeneity of Variance for N Population Variance in Excel;

在EXCEL中实现多总体方差的Bartlett齐性检验

Setting Method of Baud Rate of CAN Bus and Its Error Analysis

CAN总线波特率设置方法及误差分析

narrow heribatility

狭义遗传率[加性遗传方差在总表型方差中所占的比例]

is the population standard deviation for the data range and is assumed to be known. Standard_dev must be greater than 0

假设为已知的总体标准方差，必须大于 0

other intermediatedefense mechanisms constituents are carried on F2. Mature defense mechanisms constituents are carried on F3. The contribution rate of accumulative total of variance of the 4 factors in defense mechanism is 49.57%.

防御机制4因子模型总的方差累计贡献率为49.57％。

The Optimized Confidence of the Ratio of the Two Normal Random Variables;

两正态总体方差比的优化置信区间问题

A Method of Finding the Secondary Critical Path by Total Floats in CPM Network;

运用总时差求CPM网络中次关键路线的方法研究

An EWMA Mean Control Chart for Skewed Population Based on Scaled Weighted Variance Method;

基于尺度赋权方差的有偏总体EWMA均值控制图

A New Method of Homogeneity Test with Monotonic Variances;

各总体方差单调时一种新的齐一性检验法

Hypothetic Test under the Condition of the Unknown Total Variance and Expentancy;

未知总体方差和数学期望条件下的假设检验

Empirical Likelihood Ratio Confidence Interval Estimation for Normal Population Parameters

正态总体均值方差的经验似然比置信区间估计

The Best Likelihood Ratio Test for Ratio of Variances from Two Independent Normal Populations

两正态总体方差的最佳双边似然比检验

unbias(s)ed variance

无偏方差, 均方差