1) bell-shaped symmetrical distribution
钟形对称分布
2) bell distributed
钟形分布
3) symmetrical distribution
对称分布
1.
By analyzing the solution’s statistical distribution, this paper gives a relative theorem, which expounds that its distribution is the symmetrical distribution and the occurrence probability of the negative component is bigger than zero.
通过分析其解的统计分布,给出了一个相关定理,阐明了解的分布为对称分布,且其负分量出现的概率大于零。
2.
Some properties of ramdon variable of symmetrical distribution are discussed.
探讨了具有对称分布的随机变量的若干性质,并应用对称贝努利分布给出了一个重要的三角恒等式的证明。
4) symmetric distribution
对称分布
1.
In this paper,we extend the interchangeable concept of finite random variable to sequence of random variable,and establish one to one correspondence of the interchangeable sequence of random variable,the symmetric and consistent distribution function family and the symmetric distribution law of enumerable infinite dimension space.
将有限个随机变量的可交换性概念推广到随机变量序列的情形,建立了可交换的随机变量序列,对称相容分布函数族、可列元穷维空间上的对称分布律之间的一一对应关系。
2.
This paper presents new estimator for the symmetric distribution function.
针对未知对称分布函数提出新的非参数估计量,并证明了此估计量一致优于文献[1]给出的估计量。
5) bell-shaped symmetrical curve
钟形对称曲线
6) symmetry distribution
对称性分布
补充资料:端石钟形砚(清)

对文物价值而言,历史愈久者愈加珍贵,价格也随之高升,此类清末之器,价格当在一万元以上。
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