Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Uniform Distribution01:19

Uniform Distribution

4.7K
The uniform distribution is a continuous probability distribution of events with an equal probability of occurrence. This distribution is rectangular.
Two essential properties of this distribution are
4.7K
Distribution and Dispersion00:54

Distribution and Dispersion

21.2K
To understand intra-specific interactions in populations, scientists measure the spatial arrangement of species individuals. This geographic arrangement is known as the species distribution or dispersion. Highly territorial species exhibit a uniform distribution pattern, in which individuals are spaced at relatively equal distances from one another. Species that are highly tied to particular resources, such as food or shelter, tend to concentrate around those resources, and thus exhibit a...
21.2K
Secondary Distribution01:25

Secondary Distribution

65
Secondary distribution systems provide electrical energy at the utilization voltage levels from distribution transformers to customer meters. Typical secondary voltages in the United States include 120/240 V for residential use, 208Y/120 V for residential and commercial use, and 480Y/277 V for industrial and high-rise commercial use.
In residential areas, 120/240 V single-phase, three-wire service is commonly used for lighting, outlets, and large appliances. Urban areas with high-density loads...
65
Primary Distribution01:28

Primary Distribution

78
Primary distribution systems deliver electrical power from substations to consumers through various voltage classes, with 15-kV class voltages being predominant among U.S. utilities. Older 2.5- and 5-kV classes are being replaced by 15-kV primaries, while higher 25- to 34.5-kV classes are used in high-density urban areas and rural regions with long feeders. Three-phase, four-wire multigrounded systems are widely employed for balanced power delivery, using the neutral wire as a grounding point.
78
Sampling Distribution01:12

Sampling Distribution

11.6K
Given simple random samples of size n from a given population with a measured characteristic such as mean, proportion, or standard deviation for each sample, the probability distribution of all the measured characteristics is called a sampling distribution. How much the statistic varies from one sample to another is known as the sampling variability of a statistic. You typically measure the sampling variability of a statistic by its standard error. The standard error of the mean is an example...
11.6K
F Distribution01:19

F Distribution

3.6K
The F distribution was named after Sir Ronald Fisher, an English statistician. The F statistic is a ratio (a fraction) with two sets of degrees of freedom; one for the numerator and one for the denominator. The F distribution is derived from the Student's t distribution. The values of the F distribution are squares of the corresponding values of the t distribution. One-Way ANOVA expands the t test for comparing more than two groups. The scope of that derivation is beyond the level of this...
3.6K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

A pediatric case of measles with gastrointestinal complications in an urban hospital setting: A clinical and public health perspective.

IDCases·2026
Same author

Surgical site infection prevention among surgical healthcare workers in Syria: a nationwide cross-sectional study.

Antimicrobial resistance and infection control·2026
Same author

From pulsed disturbance to steady-state mixing: Succession of microbial ecological strategies in the estuarine ecosystem.

Water research·2026
Same author

Tracking progress towards sustainable development goal 3.2 in Somalia using time series models: a comparative forecasting analysis.

Conflict and health·2026
Same author

Individual and community-level determinants of skin-to-skin contact in Somaliland: a multilevel analysis of the 2020 demographic and health survey data.

Frontiers in global women's health·2026
Same author

Forecasting Under-5 Mortality Rate in Somalia to 2030: a comparative analysis of univariate and multivariate ARIMAX models.

Frontiers in public health·2026

相关实验视频

Updated: May 7, 2025

Author Spotlight: Analgesic Effect of Tuina on Rat Models with Compression of the Dorsal Root Ganglion Pain
05:49

Author Spotlight: Analgesic Effect of Tuina on Rat Models with Compression of the Dorsal Root Ganglion Pain

Published on: July 14, 2023

1.3K

包装的拉玛分发包装的拉玛分发.

William Bell1, Saralees Nadarajah2

  • 1Department of Mathematics, University of Manchester, Manchester, M13 9PL, UK.

Scientific reports
|December 31, 2024
PubMed
概括

一种新的单参数循环分布提供了更简单的数学特性,并证明了与现有的多参数模型相比,更优越的数据适配. 这种新的包装分布为分析循环数据提供了更基本和更有效的方法.

科学领域:

  • 统计 统计 统计 统计
  • 可能性理论概率理论.
  • 数据分析 数据分析

背景情况:

  • 循环数据分析通常涉及复杂的包裹分布.
  • 现有的包裹分布经常缺乏基本的数学属性.
  • 这限制了它们在统计建模中的实际应用和解释性.

研究的目的:

  • 为循环数据引入新的单参数包裹分布.
  • 为了证明这个新的分布具有基本的数学属性.
  • 为了比较它的适合性与已建立的多参数循环分布.

主要方法:

  • 开发一种基于包装技术的新型单参数分布.
  • 对于新分布的数学属性的基本表达式的导出.
  • 在真实数据集上使用概率图,密度图,AIC和BIC进行比较分析.

主要成果:

  • 提出的单参数分布给出了所有其数学属性的基本表达式.
  • 与三参数分布和其他六种包裹分布相比,它显示出更好的数据匹配.
  • 这些发现在多个数据集和评估指标中一致观察到.

结论:

关键词:
循环数据是一个循环数据.最大的可能性.三角形的时刻是三角形的时刻.

更多相关视频

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
06:46

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery

Published on: September 27, 2024

177
Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment
04:35

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment

Published on: July 5, 2024

1.6K

相关实验视频

Last Updated: May 7, 2025

Author Spotlight: Analgesic Effect of Tuina on Rat Models with Compression of the Dorsal Root Ganglion Pain
05:49

Author Spotlight: Analgesic Effect of Tuina on Rat Models with Compression of the Dorsal Root Ganglion Pain

Published on: July 14, 2023

1.3K
Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
06:46

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery

Published on: September 27, 2024

177
Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment
04:35

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment

Published on: July 5, 2024

1.6K
  • 新的单参数包裹分布是循环数据的数学可处理和统计有效模型.
  • 它在数学简单性和合适性方面比现有的更复杂的分布具有优势.
  • 这种分布为研究人员分析方向性或周期性数据提供了一个有价值的新工具.