The good in him was a constant variance with the bad.
他善良的一面经常和邪恶的一面发生矛盾。
Non-constant error variance or heteroscedasticity.
非常量误差方差或异方差性。
It revealed that the product of the standard deviation of the estimated sampling variance and square root of the number of samples was a constant.
实验也证明，取样方差估计值的标准偏差与样本数目的平方根之积可近似为一常数。
We usually take variance as the index of capital market venture, and suppose that the variance of market return is a constant.
传统金融理论通常把收益率的方差作为风险的度量指标，并在选择证券组合时假设市场方差为常数。
This paper provides a method for pricing options in the constant elasticity of variance(CEV) model environment using the Lie-algebraic technique when the model parameters are time-dependent.
文章使用李-代数方法对波动率弹性为常数（CEV）的时间依赖型期权提供一种定价方法。
Under the assumption of line movement with constant velocity, the flight path is built such that prediction error variance computed by the LFR times meets the specified requirements.
进一步从建立航路的的预测误差要求出发，在匀速直线运动的假设下，使用该激光重频值，激光测距的预测误差方差能达到工程要求。
Suppose that underlying asset follows Constant Elasticity of Variance model(CEV). We derive pricing formula of binary option.
假设标的股价服从不变方差弹性（CEV）模型下，推导出两值期权的定价公式。
Suppose that underlying asset follows Constant Elasticity of Variance model(CEV). We derive pricing formula of binary option.
假设标的股价服从不变方差弹性（CEV）模型下，推导出两值期权的定价公式。
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