'Cov' diaporamas de présentation

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Lectures prepared by: Elchanan Mossel Yelena Shvets

Lectures prepared by: Elchanan Mossel Yelena Shvets

Lectures prepared by: Elchanan Mossel Yelena Shvets. Do taller people make more money?. Question : How can this be measured?. -. Ave (height). wage at 19. Ave (wage). height at 16. National Longitudinal Survey of Youth 1997 (NLSY97). Definition of Covariance.

By Faraday
(166 views)

Report of the Committee of Visitors of the

Report of the Committee of Visitors of the

Report of the Committee of Visitors of the Division of Chemical Sciences, Geosciences, and Biosciences (CGBS) to the Basic Energy Sciences Advisory Committee Review of FY 2005, 2006, and 2007 April 23-25, 2008 Report given by Geri Richmond (Univ. of Oregon) July 24, 2008.

By angeni
(111 views)

Committee of Visitors Don Wuebbles, Chair May 14, 2007

Committee of Visitors Don Wuebbles, Chair May 14, 2007

Review of DOE Climate Change Research Division April 25-27, 2007 Report of Findings and Recommendations. Committee of Visitors Don Wuebbles, Chair May 14, 2007. Charge to COV.

By mercer
(81 views)

BSSD Response to the Committee of Visitors June 2008 review report

BSSD Response to the Committee of Visitors June 2008 review report

BSSD Response to the Committee of Visitors June 2008 review report. The COV was charged to assess the processes used to: solicit, review, and recommend proposal funding actions manage ongoing research programs respond to the recommendations of the 2005 COV June 8-11, 2008 review

By usoa
(163 views)

ACDE model and estimability

ACDE model and estimability

ACDE model and estimability. Why can’t we estimate (co)variances due to A, C, D and E simultaneously in a standard twin design?. Covariances: MZ. cov(y i1 ,y i2 |MZ) = cov(MZ) = s A 2 + s D 2 + s C 2. Covariance: DZ. cov(y i1 ,y i2 |DZ) = cov(DZ) = ½ s A 2 + ¼ s D 2 + s C 2.

By akamu
(105 views)

Report of the Committee of Visitors Tokamak Research and Enabling Technologies

Report of the Committee of Visitors Tokamak Research and Enabling Technologies

Report of the Committee of Visitors Tokamak Research and Enabling Technologies. Report to the FESAC Presented by David Gates February 28, 2006. The COV Charge. The Committee was asked to review the way that OFES manages its program elements with respect to:

By helena
(110 views)

Committee of Visitors Review of the BES Scientific User Facilities Division Update for BESAC

Committee of Visitors Review of the BES Scientific User Facilities Division Update for BESAC

Committee of Visitors Review of the BES Scientific User Facilities Division Update for BESAC March 1, 2013 James B. Murphy Director, Scientific User Facilities Division. History of COVs in SC/BES. The first SC-BES COV was in 2002.

By chynna
(137 views)

REPORT TO THE BIOLOGICAL and ENVIRONMENTAL RESEARCH ADVISORY COMMITTEE BY THE

REPORT TO THE BIOLOGICAL and ENVIRONMENTAL RESEARCH ADVISORY COMMITTEE BY THE

REPORT TO THE BIOLOGICAL and ENVIRONMENTAL RESEARCH ADVISORY COMMITTEE BY THE COMMITTEE OF VISITORS FOR THE REVIEW OF THE ENVIRONMENTAL REMEDIATION SCIENCES DIVISION. Michael F. Hochella, Jr., University Distinguished Professor Department of Geosciences, Virginia Tech.

By wilbur
(133 views)

COV CHARGE

COV CHARGE

REPORT TO THE BIOLOGICAL AND ENVIRONMENTAL ADVISORY COMMITTEE BY THE COMMITTEE OF VISITORS FOR THE REVIEW OF THE LIFE AND MEDICAL SCIENCES DIVISION September 5, 2008. COV CHARGE.

By quinto
(231 views)

Committee of Visitors Report Division of Mathematical Sciences National Science Foundation

Committee of Visitors Report Division of Mathematical Sciences National Science Foundation

Committee of Visitors Report Division of Mathematical Sciences National Science Foundation Presentation to the MPS Advisory Committee Margaret H. Wright, COV Chair Computer Science Department Courant Institute New York University. Format: an overview of the report The main sound bite :

By huong
(117 views)

Committee of Visitors Review of EFRC/Hub Update for BESAC March 1, 2013 Harriet Kung

Committee of Visitors Review of EFRC/Hub Update for BESAC March 1, 2013 Harriet Kung

Committee of Visitors Review of EFRC/Hub Update for BESAC March 1, 2013 Harriet Kung. History of COVs in SC/BES. The very first COV in SC was the review of the chemical sciences portion of the CSGB division in 2002.

By brigit
(90 views)

Diagnosis of Severe Acute Respiratory Syndrome (SARS)

Diagnosis of Severe Acute Respiratory Syndrome (SARS)

Diagnosis of Severe Acute Respiratory Syndrome (SARS). Clinical characteristics of illness Epidemiologic link to SARS, i.e. ,travel or contact Laboratory evidence of SARS-CoV infection Type of specimen Timing of specimen collection Laboratory assay to detect infection.

By margot
(222 views)

Report of the Committee of Visitors of the Division of Chemical Sciences, Geosciences,

Report of the Committee of Visitors of the Division of Chemical Sciences, Geosciences,

Report of the Committee of Visitors of the Division of Chemical Sciences, Geosciences, and Biosciences ( CSGB) to the Basic Energy Sciences Advisory Committee Review of FY 2011, 2012, and 2013 April 30 – May 2, 2014 Report presented by Sharon Hammes-Schiffer

By nile
(108 views)

A Discussion on the Introduction of Wood to the JCSS probabilistic model code

A Discussion on the Introduction of Wood to the JCSS probabilistic model code

A Discussion on the Introduction of Wood to the JCSS probabilistic model code. Tomi Toratti, Alpo Ranta-Maunus. Background. Only the lower tail of strength distribution necessary for the reliability analysis The lower tails of different distibution functions are different.

By aman
(131 views)

Euler predicted free nutation of the rotating Earth in 1755 Discovered by Chandler in 1891

Euler predicted free nutation of the rotating Earth in 1755 Discovered by Chandler in 1891

Rotating solid. Euler predicted free nutation of the rotating Earth in 1755 Discovered by Chandler in 1891 Data from International Latitude Observatories setup in 1899. Monthly data,  t = 1 month. Work with complex-values, Z(t) = X(t) + iY (t).

By flann
(214 views)

随机过程与排队论

随机过程与排队论

随机过程与排队论. 计算机科学与工程学院 顾小丰 Email : guxf@uestc.edu.cn 2014年10月15日星期三. 上一讲内容回顾. 随机变量及其分布程 随机变量、分布函数 离散型随机变量及其分布律 连续型随机变量及其概率密度 常见的随机变量及其分布 n 维随机变量 随机变量函数的分布. 本讲主要内容. 随机变量的数字特征 数学期望 方差 k 阶矩 协方差 条件数学期望 随机变量的特征函数. §1.3 随机变量的数字特征. 一、数学期望.

By ann
(297 views)

第六章

第六章

第六章. 效率多元分散. 投資組合報酬的兩項法則. W B = 投資於債券型基金 B 的比例 W S = 投資於債券型基金 S 的比例 r B = 投資於債券型基金 B 的預期報酬 r S = 投資於債券型基金 S 的預期報酬. s B 2 = 債券型基金 B 的變異數. s S 2 = 債券型基金 S 的變異數. = 基金 B 和 S 彼此 互相變異部分. 兩項風險性資產投資組合的風險. 共變異數. Cov(r 1 r 2 ) = r 1,2 s 1 s 2. r 1,2 = 報酬的相關係數.

By sydnee-moses
(233 views)

但 X 1 , X 2 相互独立且都服从 N ( m , s 2 ), 因此 X 2 - X 1 ~ N (0,2 s 2 ), 且

但 X 1 , X 2 相互独立且都服从 N ( m , s 2 ), 因此 X 2 - X 1 ~ N (0,2 s 2 ), 且

证明题 :设总体 X ~ N ( m , s 2 ), X 1 , X 2 是取自 X 的样本 ,  X 是样本均值 , S 2 是样本方差 , 试证明  X 与 S 2 独立 , 且 S 2 / s 2 ~ c 2 (1). 证 :. 但 X 1 , X 2 相互独立且都服从 N ( m , s 2 ), 因此 X 2 - X 1 ~ N (0,2 s 2 ), 且.

By davis-bishop
(124 views)

統計學

統計學

統計學. 郭信霖 許淑卿. 第五章隨機變數與機率分配 ■ 5-1 隨機變數 ■ 5-2 機率分配 ■ 5-3 期望值與變異數 ■ 5-4 共變異數( Covariance ) ■ 5-5 流程圖. 5-1 隨機變數( Random Variable , r.v. ). 一、定義 隨機變數: 對應於樣本空間的實數值函數,一般以大寫字母 X , Y , Z , …… 等,而以小寫字母 x , y , z , …… 表其函數值,即 X : S → X ( S ) = x 。 二、種類

By prosper-dillard
(91 views)

第十章 典型相关分析

第十章 典型相关分析

第十章 典型相关分析. §10.1 引言 §10.2 总体典型相关 §10.3 样本典型相关 §10.4 典型相关系数的显著性检验. §10.1 引言. 典型相关分析( canonical correlation analysis )是研究两组变量之间相关关系的一种统计分析方法,它能够有效地揭示两组变量之间的相互线性依赖关系。 典型相关分析是由霍特林( Hotelling,1935,1936 )首先提出的。. §10.2 总体典型相关. 一、典型相关的定义及导出 二、典型相关变量的性质 三、从相关矩阵出发计算典型相关.

By calantha-nicolo
(177 views)

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