A cost estimation that assumes normal data distribution may not best reflect the real cost of a query when different parameters are used.
假定正常数据分布的开销评估可能并不能最好地反映查询使用不同参数时的实际开销。
The conventional assumption that stock markets behave according to a random Gaussian or normal distribution is incorrect.
股价波动服从随机高斯分布或者正态分布的假设是不正确的。
Large movements in prices such as crashes are much more common than would be predicted in a normal distribution.
股价大幅波动，例如股市崩溃，比正态分布预料的要常见。
A nice little histogram showing me the values I get, and we will come back to this later and talk about why this is called a normal distribution.
这是一个很好的柱形图，它能告诉我我获得的值是多少，我们下一次还会讲到这个柱形图，并且会讲到为什么它被称作，正态分布。
The Normal distribution tutorial: a tutorial on the Normal or Gaussian distribution.
常态分布讲解：常态或高斯分布的讲解。
The stress, strength and other design variables of porcelain sleeve can all be considered to obey normal distribution, and dealt as normally distributed variables during calculation.
瓷套的应力、强度和各设计变量均可认为服从正态分布，在设计时作为正态分布变量处理。
It is well known that in evaluating the value of certain probability integral with normal distribution, there are three kinds of table usually employed.
众所周知，在计算正态分布的概率积分值时，有三种表可供查阅。
Results: After variate transformation by clustering, the data was more similar to normal distribution.
结果：指标变量经聚类变换后，资料总体更接近于正态分布。
Old orchard soil and new orchard soil the whole phosphorus concentration obey natural logarithm normal distribution.
老果园土壤和新果园土壤全磷浓度都服从自然对数正态分布。
If obeying logarithmic normal distribution, the reliable life of rolling bearings presents in an analytic form.
当载荷服从对数正态分布时，滚动轴承的可靠寿命具有解析式。
Equivalent normal distribution method for calculation of the reliability of machine elements, both calculation principle and application in engineering, is no doubt successful.
等效正态分布法对机械元件的可靠度计算，无论从计算原理还是到工程应用，无疑是比较成功的。
The values of floating charge voltage for all cells in the VRLA group were as the law of normal distribution.
阐述了阀控式密封铅蓄电池组中各单电池的浮充电压值是服从正态分布规律的。
A question of formation confidence interval for scale parameter of normal distribution from incomplete observational data is discussed.
对于残缺的样本观测数据，讨论了正态分布总体尺度参数的区间估计问题。
The distributions of both fertilizer and water applied through sprinkler system can be represented by an approximate similar normal distribution function.
通过分析化肥施入量与灌水量的统计分布规律发现，它们都可以用正态分布来表示。
Does the rainfall in China fit the normal distribution?
中国的降水量符合正态分布吗？
Output scheme and the best interest of units can be determined by analyzing normal distribution of predicted periodic clearing price.
把预测的各个时段成交电价通过正态分布分析来确定机组的出力方案和最佳收益。
The normalized data will exhibit the same normal distribution, reduce or eliminate the interference of unequal precision, and highlight the useful information in images.
归一化以后的数据服从同一正态分布，可以减少或消除不等精度的干扰，突出图象中的有用信息。
All other arbitrary random Numbers of normal distribution can be obtained by transforming these random Numbers.
其它任意的正态分布随机数都可由此随机数转换得到。
Gaussian model with the assumption of the normal distribution of plume concentration is mostly applied for the evaluation of local atmospheric pollution in the world.
在研究局部地区空气污染时，目前国内外应用较为广泛的仍是假设烟羽浓度为正态分布的高斯模式。
In this paper, a formula of ground settlement around deep excavation is proposed based on the normal distribution of density function.
本文提出了按正态分布密度函数计算深基坑开挖引起的地表沉降值的公式。
The number distribution of diameter grade obeys normal distribution.
雷竹株数按径阶分布服从正态分布。
Diameter distribution of tree stratum reveals truncated normal distribution.
乔木层株数随胸径分布呈现截尾正态分布。
It has found that section dimension deviations yield with normal distribution; axis line deviations yield with lognormal distribution.
混凝土截面尺寸偏差服从正态分布，轴线位移偏差服从对数正态分布。
The distribution of residence time of experiment materials is similar to normal distribution.
试验物料在回转窑内停留时间的分布与正态分布比较接近。
The track geometry irregularity is a stable normal distribution and state-history random variable.
轨道几何不平顺为平稳的正态分布和各态历经的随机变量。
Figure 1 shows a typical normal probability density function, so called because most observations fall into this sort of distribution.
图1显示了一个典型的正态概率分布函数，这样命名是因为绝大多数值都属于这个分布范围内。
This paper discusses the equivalent normal distribution of logarithmic normal distribution and weibull distribution.
本文着重研讨了对数正态分布和威布尔分布的等效正态分布。
Well, the mean is always .2 no matter how many policies you write, so it's going to be--we're going to have a normal distribution centered on .2.
不论你签了多少份保单,均值永远是0.2,所以这就是一个关于x=0.2对称的,正态分布
Well, the mean is always .2 no matter how many policies you write, so it's going to be--we're going to have a normal distribution centered on .2.
不论你签了多少份保单,均值永远是0.2,所以这就是一个关于x=0.2对称的,正态分布
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