专业释义英英释义
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随机变量 - 引用次数：29
The fixed-charged transportation problem with random variables is studied.
研究了含随机变量的固定费用的运输问题，对运输问题数学模型进行了描述，通过Steiner树问题的转换证明了该问题是NP难问题。
参考来源 - 不确定条件下若干网络优化问题的模型与算法研究 -
随机变量 - 引用次数：23
The variation of basic random variables is discussed and their statistic characteristics are determined.
讨论了随机变量的变异性,确定了基本随机变量的统计特征。
参考来源 - 隧道初期支护安全性评价理论与方法研究 -
随机变数
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双语例句原声例句权威例句
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A time series data set is a sequence of random variables indexed by time.
时间序列数据是以时间为指标的一个随机变量序列。
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We often assume in finance that random variables, such as returns,are normally distributed.
金融学中我们常假设随机变量,例如收益率,是服从正态分布的
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We often assume in finance that random variables, such as returns, are normally distributed.
我们经常在金融学中假设随机变量，比如回报，是正态分布的。
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This refers to random variables that have fat-tailed distributions-- random variables that occasionally give you really big outcomes.
这就表示,服从长尾分布的随机变量,这些数据出现极端值的概率比较大
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We have instead what's called a probability density when we have continuous random variables.
所以我们用概率密度的概念来描述,连续型随机变量的情况
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We often assume in finance that random variables, such as returns,are normally distributed.
金融学中我们常假设随机变量,例如收益率,是服从正态分布的
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