生成服从正态分布矩阵 randn
服从标准正态分布 a standard normal distribution
们服从双变量正态分布 bi-variable normal distribution
雷竹株数按径阶分布服从正态分布。
The number distribution of diameter grade obeys normal distribution.
当数量等于3,分布曲线服从正态分布。
When the number equals 3, the distribution curve obey a normal distribution.
双正态模型假定正常组与异常组均服从正态分布。
Binormal models are assumed that normal or abnormal group is normal distribution respectively.
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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