CO OZNACZA SŁOWO VARIANCE
Zmienność
W teorii prawdopodobieństwa i statystyce wariancja polega na tym, jak daleko jest rozłożony zestaw liczb. Odchylenie zera wskazuje, że wszystkie wartości są identyczne. Wariacja zawsze jest nieujemna: mała odmiana wskazuje, że dane są bardzo bliskie średniej i stąd, a duża zmienność oznacza, że dane są bardzo rozłożone wokół średniej i od siebie. Równoważną miarą jest pierwiastek kwadratowy wariancji, zwany odchyleniem standardowym. Odchylenie standardowe ma ten sam wymiar co dane, a zatem jest porównywalne z odchyleniami średniej. Wariacja jest jednym z kilku deskryptorów rozkładu prawdopodobieństwa. W szczególności wariacja jest jednym z momentów dystrybucji. W tym kontekście stanowi część systematycznego podejścia do rozróżniania rozkładów prawdopodobieństwa. Podczas gdy inne takie podejścia zostały opracowane, te oparte na momentach są korzystne pod względem matematycznej i obliczeniowej prostoty.
Definicja słowa variance w słowniku
Pierwsza definicja wariancji w słowniku jest aktem różniącym się lub jakością, stanem lub stopniem rozbieżności; rozbieżność. Inna definicja wariancji jest przykładem rozbieżności; niezgoda. Wariancja jest również miarą dyspersji otrzymanej przez przyjęcie średniej kwadratów odchyleń obserwowanych wartości od ich średniej w rozkładzie częstotliwości.
CYTATY ZE SŁOWEM «VARIANCE»
Słynne cytaty i zdania ze słowem
variance.
CEOs hate variance. It's the enemy. variance in customer service is bad. variance in quality is bad. CEOs love processes that are standardized, routinized, predictable. Stamping out variance makes a complex job a bit less complex.
Certainty is the mother of quiet and repose, and uncertainty the cause of variance and contentions.
The analysis of variance is not a mathematical theorem, but rather a convenient method of arranging the arithmetic.
Women have traditionally deferred to the judgment of men although often while intimating a sensibility of their own which is at variance with that judgment.
As a company gets big, the information that informs decision-making gets massive. Depending upon the prism through which you view the business, your perspective will vary. If two people are in charge, this variance will cause conflict and delay.
History teaches us, in no mistaken language, how often customs and practices, which were originated without lawful warrant, and opposed to the sound construction of the law, have come to overload and pervert it, as commentators on the text of Holy Scripture have established doctrines wholly at variance with its true spirit.
We shall find in our troubled hearts, where discord reigns, two needs which seem at variance, but which merge, as I think, in a common source - the love of the true, and the love of the fabulous.
KSIĄŻKI POWIĄZANE ZE SŁOWEM «VARIANCE»
Poznaj użycie słowa
variance w następujących pozycjach bibliograficznych Książki powiązane ze słowem
variance oraz krótkie ich fragmenty w celu przedstawienia kontekstu użycia w literaturze.
1
The Analysis of
Variance
Originally published in 1959, this classic volume has had a major impact on generations of statisticians.
2
Introduction to
Variance Estimation
Offers an account of the theory and methods for precision calculations and inference. This book provides instruction on the methods that are important to data-driven decision making in business, government, and academe.
3
The Analysis of
Variance: Fixed, Random, and Mixed Models
The goal of the book is to bridge the gap between an overly abstract viewpoint and one, which underplays the concepts, ideas and essential statistical insights.
Hardeo Sahai, Mohammed I. Ageel,
2000
With these new unabridged softcover volumes, Wiley hopes to extend the lives of these works by making them available to future generations of statisticians, mathematicians, and scientists. ". . .Variance Components is an excellent book.
Shayle R. Searle, George Casella, Charles E. McCulloch,
2009
5
Variance Components: Mixed Models, Methodologies and ...
Variance Components Estimation deals with the evaluation of the variation between observable data or classes of data. This is an up-to-date, comprehensive work that is both theoretical and applied.
The second edition of this paper provides a conceptual understanding of analysis of variance.
Gudmund R. Iversen, Helmut Norpoth,
1987
7
Confidence Intervals on
Variance Components
Summarizes information scattered in the technical literature on a subject too new to be included in most textbooks, but which is of interest to statisticians, and those who use statistics in science and education, at an advanced ...
8
Analysis of
Variance, Design, and Regression: Applied ...
This text presents a comprehensive treatment of basic statistical methods and their applications. It focuses on the analysis of variance and regression, but also addressing basic ideas in experimental design and count data.
9
A Student's Guide to Analysis of
Variance
Introductory level topics such as standard deviation, standard error and t-tests are revised, making this book an invaluable aid to all students for whom ANOVA is a compulsory topic.
Maxwell J. Roberts, Riccardo Russo,
1999
10
Mean-
Variance Analysis in Portfolio Choice and Capital Markets
The purpose of the present book, originally published in 1987, is to present a comprehensive and accessible account of the general mean-variance portfolio analysis, and to illustrate its usefulness in the practice of portfolio management ...
Harry M. Markowitz, G. Peter Todd,
2000
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «VARIANCE»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
variance w wiadomościach.
Borough looks to streamline zoning variance requests
Property owners with zoning irregularities can apply for a variance or grandfather rights, which is essentially approval for the irregularity. The borough is seeing ... «Fairbanks Daily News-Miner, Lip 15»
Javier's denied variance
CHIPLEY - It took less than five minutes for the Chipley Planning and Zoning Commission to deny a request by Javier's Mexican Grill for a variance to allow the ... «Holmes County Times Advertiser, Lip 15»
Zoning Board of Appeals grants variance for six-megawatt solar …
EAST DEERFIELD — The Zoning Board of Appeals on Thursday night granted a variance to the company that wants to build a six-megawatt solar energy farm ... «GazetteNET, Lip 15»
Developer pulls variance request for Mirabella advertising signs in …
BRADENTON -- Marshall Gobuty, the developer for the Mirabella at Village Green development in West Bradenton, pulled his request Wednesday for a variance ... «Bradenton Herald, Lip 15»
Restaurant's future uncertain as Easton ZBA approves, then …
“If you need a supermajority to get the variance, you need a supermajority to change the variance,” Doug Troyer said. “My client is now in a position where he ... «Wicked Local Easton, Cze 15»
Ohio Abortion Clinic Has 30 Days to Obey the Law or Face Closure
Today, Ohio Right to Life obtained a notification from the Ohio Department of Health that Women's Med Center of Dayton (WMC) has been denied a variance ... «LifeNews.com, Cze 15»
Rehoboth board grants Dogfish Head variance
Photo by: Ryan Mavity Dogfish Head founder Sam Calagione speaks to the Rehoboth Beach Board of Adjustment June 22. Dogfish was granted a variance to ... «Cape Gazette, Cze 15»
Concert variance denied
The concert series has been a passion of hers, she said, and she was devastated to hear the ZBA deny the variance request that would allow them to continue. «Monadnock Ledger Transcript, Cze 15»
ABN AMRO Clearing to clear EURO STOXX 50 Variance Futures on …
EUREX Exchange announced today that ABN AMRO Clearing will offer clearing services for the EURO STOXX 50® Variance Futures and will be available on ... «LeapRate, Maj 15»
DNR to hold hearing on phosphorous variance determination
DNR to hold hearing on phosphorous variance determination. By The Associated Press Tuesday, May 5th 2015. File photo. 0shares. MADISON, Wis. (AP) - Gov. «Fox11online.com, Maj 15»