Variance is a statistical measurement of the spread between numbers in a data set. It measures how far each number in the set is from the mean (average), and thus from every other number in the set.

In deriving the Mean-Variance (M-V) rule and the Capital Asset Pricing Model (CAPM), one assumes explicitly or implicitly normal distributions of returns and risk aversion. With these assumptions, it ...

Variance is a measure of dispersion that explains the distribution of values around the mean. The standard deviation - also often used to measure the dispersion of a distribution - is the square ...

该方法的核心理念是让作者对自己的论文进行排序，从而为同行评审提供一个新的参考维度。团队同时提出保序机制（Isotonic Mechanism）对审稿人的打分作出调整，赋予每篇文章一个校准后的评分（Isotonic Score），以满足作者提供的排序。

The 4-dimensional Hartmann function is multimodal. It is given here in the form of Picheny et al. (2012), having a mean of zero and a variance of one. The authors ...

The Goldstein-Price function has several local minima. This rescaled form of the function has a mean of zero and a variance of one. The authors also add a small ...

to the mean is $27. The standard deviation is calculated using the square root of the variance. The symbol of the standard deviation of a random variable is "σ“ and the symbol for a sample is ...

Another good predictor of grades discernible in this data set is class size. The influence of class size on student learning ...

Just because you have opinions doesn't mean you need to share them with everyone else. The post 40 Times People Dealt With ...

Just because you have opinions doesn't mean you need to share them with everyone else. The post 40 Pieces Of Condescending ...