... normal distribution curve 常态分布曲线 常态分配曲? normal distribution rate 正态分布率 normal equation 常规方程 ...
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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
We often assume in finance that random variables, such as returns,are normally distributed.
我们研究股票市场价格时，通常认为股票价格模型服从布朗运动，即对数收益率是正态分布的。
When we study stock market, we usually think that the model of stock price obeys Brownian movement, which log-return characterize normal distribution.
这样，知道模型的渗透率对数正态分布概率50%处渗透率和变异系数，就可以建立起确切的渗透率平面模型。
Thus, when the permeability of 50% probability and the coefficient of variation for lognormal distribution are known, one can establish a definite numerical model of permeability plane distribution.
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