网络释义专业释义英英释义
...息标准分数（stardard score）是以标准差为单位来衡量某一分数与平均数之间的离差情况?就是因为要评估两个总体的方差(Variances)是否相等，总体标准差σ未知的正态分布资料，确定P值,alternative hypothesis。
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差异（Variances）：预测数额和实际数额之间的区别。 差异报告（Variation report）：记录了各项预测的收入数额和实际的收入数额、预测的费用数额和...
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homogeneity test of variances 方差齐性检验 ; 方差齐性查验 ; 方差齐
coefficients of variances 变异系数
homogeneity of variances 同方差性 ; 方差齐性 ; 方差的同一性
Unequal Variances 即两方差不齐
Equal Variances Assumed 假设方差相等 ; 方差相等 ; 结果 ; 方差具有齐次性时
Sales Volume Variances 销售数量差异
Test for Equal Variances 方差齐性检验 ; 等方差检验 ; 等方差性检验
Equal variances not assumed 方差不齐 ; 假设方差不相等 ; 方差不相等
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变异 - 引用次数：5
A transgenic tomato (Lycopersicum esculentum var. cerasifarm) plant has been studied and its cytological characters, DNA ploidy and protein express variances compared with the wild-type plant were characterized. These results will provide the basis of mutation mechanism.
本实验以一株转基因番茄(Lycopersicum esculentum var.cerasifarm)为实验材料,通过对其细胞学特征、倍性和蛋白质组进行研究,为研究变异机理提供理论基础。
参考来源 - 转基因番茄叶绿体特征及其蛋白质差异研究 -
变动
·2,447,543篇论文数据，部分数据来源于NoteExpress
variance
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n.
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an event that departs from expectations
同义词： discrepancy variant
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discord that splits a group
同义词： division
- the second moment around the mean; the expected value of the square of the deviations of a random variable from its mean value
- a difference between conflicting facts or claims or opinions
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the quality of being subject to variation
同义词： variability variableness
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an official dispensation to act contrary to a rule or regulation (typically a building regulation)
"a zoning variance"
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an activity that varies from a norm or standard
同义词： variation
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an event that departs from expectations
以上来源于: WordNet
柯林斯英汉双解大词典
variance /ˈvɛərɪəns/
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1.
PHRASE If one thing is at variance with another, the two things seem to contradict each other. 与…相矛盾 [正式]
例：Many of his statements were at variance with the facts.
他的许多陈述都与事实相矛盾。
原声例句权威例句
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You take all the risky assets ... and you analyze them first to get their-- you have to do a statistical analysis to get their expected returns, their variances, and their covariances.
你需要对所有的风险资产进行分析,首先要得到它们的-,你必须要做一个统计分析,算出它们的预期收益率，方差，和它们的协方差。
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They might say my sample period was off, ... but that's what the theory-- ... using my data for the sample period that I computed-- the expected returns and co-variances says one should do.
他们可能说我的采样周期是有问题的，不过我的结果都是靠理论-,我采用自己收集的数据计算出-,预期收益和协方差可以用来指导我们的投资行为。
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But, I've dropped that assumption and now I'm going on to assuming that they're taking account of their dependence on each other, taking account of their different expected returns, and taking account of their different covariances and variances; so that's what we've got.
不过我已经放弃了那个假定,我现在假定,我们需要考虑它们彼此间的相关性，它们有着不同期望收益，不同的协方差和方差;,这是我们所学到的。
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