英语词汇random variance怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词

random variance

释义

random variance

1
?随机变量
... random sampling随机抽样法 random variance随机变量 random walk theory随机游动理论 ...

短语

1
The structure variance of soil nutrient is bigger than the random variance.
毛竹林土壤养分的结构性变异大于随机变异。
2
The variance of a random variable measures how far from the expected value its values typically are.
随机变量的方差衡量随机变量值与期望值偏离的程度。
3
The technical definition of variance is the random variable's second central moment, the weighted average of the square of the differences from the expected value.
3方差的专业定义是随机变量的二次中心矩，与期望值之差的平方的加权平均值。

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单词	random variance
释义	random variance 简明释义随机变量网络释义 1 ?随机变量 ... random sampling随机抽样法 random variance随机变量 random walk theory随机游动理论 ... 短语 1 Random variance model 随机方差模型 2 Random Variance Shift Autoregressive 随机方差扩大模型 3 random value variance 计随机值变化双语例句 1 The structure variance of soil nutrient is bigger than the random variance. 毛竹林土壤养分的结构性变异大于随机变异。 2 The variance of a random variable measures how far from the expected value its values typically are. 随机变量的方差衡量随机变量值与期望值偏离的程度。 3 The technical definition of variance is the random variable's second central moment, the weighted average of the square of the differences from the expected value. 3方差的专业定义是随机变量的二次中心矩，与期望值之差的平方的加权平均值。
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