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La statistique sans formule math matique

Ce manuel présente la statistique d'un point de vue logique avec 150 exercices corrigés et 42 modèles de résolutions par Excel. Idéale pour l'étudiant non mathématicien, cette 3e édition est à jour des dernières modifications de l'INSEE sur les indices.

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Regression Modeling Strategies

This highly anticipated second edition features new chapters and sections, 225 new references, and comprehensive R software. In keeping with the previous edition, this book is about the art and science of data analysis and predictive modeling, which entails choosing and using multiple tools. Instead of presenting isolated techniques, this text emphasizes problem solving strategies that address the many issues arising when developing multivariable models using real data and not standard textbook examples. It includes imputation methods for dealing with missing data effectively, methods for fitting nonlinear relationships and for making the estimation of transformations a formal part of the modeling process, methods for dealing with "too many variables to analyze and not enough observations," and powerful model validation techniques based on the bootstrap. The reader will gain a keen understanding of predictive accuracy and the harm of categorizing continuous predictors or outcomes. This text realistically deals with model uncertainty and its effects on inference, to achieve "safe data mining." It also presents many graphical methods for communicating complex regression models to non-statisticians. Regression Modeling Strategies presents full-scale case studies of non-trivial datasets instead of over-simplified illustrations of each method. These case studies use freely available R functions that make the multiple imputation, model building, validation and interpretation tasks described in the book relatively easy to do. Most of the methods in this text apply to all regression models, but special emphasis is given to multiple regression using generalized least squares for longitudinal data, the binary logistic model, models for ordinal responses, parametric survival regression models and the Cox semi parametric survival model. A new emphasis is given to the robust analysis of continuous dependent variables using ordinal regression. As in the first edition, this text is intended for Masters' or Ph.D. level graduate students who have had a general introductory probability and statistics course and who are well versed in ordinary multiple regression and intermediate algebra. The book will also serve as a reference for data analysts and statistical methodologists, as it contains an up-to-date survey and bibliography of modern statistical modeling techniques. Examples used in the text mostly come from biomedical research, but the methods are applicable anywhere predictive models ("analytics") are useful, including economics, epidemiology, sociology, psychology, engineering and marketing.

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Probability Space

Nancy Kress cemented her reputation in SF with the publication of her multiple-award–winning novella, "Beggars in Spain," which became the basis for her extremely successful Beggars Trilogy (comprising Beggars in Spain, Beggars and Choosers, and Beggars Ride). And now she brings us Probability Space, the conclusion of the trilogy that began with Probability Moon and then Probability Sun, which is centered on the same world as Kress's Nebula Award-winning novelette, "Flowers of Aulit Prison." The Probability Trilogy has already been widely recognized as the next great work by this important SF writer. In Probability Space, humanity's war with the alien Fallers continues, and it is a war we are losing. Our implacable foes ignore all attempts at communication, and they take no prisoners. Our only hope lies with an unlikely coalition: Major Lyle Kaufman, retired warrior; Marbet Grant, the Sensitive who's involved with Kaufman; Amanda, a very confused fourteen-year-old girl; and Magdalena, one of the biggest power brokers in all of human space. As the action moves from Earth to Mars to the farthest reaches of known space, with civil unrest back home and alien war in deep space, four humans--armed with little more than an unproven theory--try to enter the Fallers' home star system. It's a desperate gamble, and the fate of the entire universe may hang in the balance. At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.

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The Mis Behaviour of Markets

This international bestseller, which foreshadowed a market crash, explains why it could happen again if we don't act now. Fractal geometry is the mathematics of roughness: how to reduce the outline of a jagged leaf or static in a computer connection to a few simple mathematical properties. With his fractal tools, Mandelbrot has got to the bottom of how financial markets really work. He finds they have a shifting sense of time and wild behaviour that makes them volatile, dangerous - and beautiful. In his models, the complex gyrations of the FTSE 100 and exchange rates can be reduced to straightforward formulae that yield a much more accurate description of the risks involved.

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Foundations of Databases

This work presents comprehensive coverage of the foundations and theory of database systems. It is a reference to both classical material and advanced topics, bringing together many subjects including up-to-date coverage of object-oriented and logic databases. Numerous exercises are provided at three levels of difficulty. The book is intended for use by database professionals at all levels of experience, and graduate and senior level students in Advanced Theory of Databases.

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General Theory Of Employment Interest And Money

John Maynard Keynes Is The Great British Economist Of The Twentieth Century Whose Hugely Influential Work The General Theory Of Employment, Interest And Money Is Undoubtedly The Century S Most Important Book On Economics Strongly Influencing Economic Theory And Practice, Particularly With Regard To The Role Of Government In Stimulating And Regulating A Nation S Economic Life. Keynes S Work Has Undergone Significant Revaluation In Recent Years, And Keynesian Views Which Have Been Widely Defended For So Long Are Now Perceived As At Odds With Keynes S Own Thinking. Recent Scholarship And Research Has Demonstrated Considerable Rivalry And Controversy Concerning The Proper Interpretation Of Keynes S Works, Such That Recourse To The Original Text Is All The More Important. Although Considered By A Few Critics That The Sentence Structures Of The Book Are Quite Incomprehensible And Almost Unbearable To Read, The Book Is An Essential Reading For All Those Who Desire A Basic Education In Economics. The Key To Understanding Keynes Is The Notion That At Particular Times In The Business Cycle, An Economy Can Become Over-Productive (Or Under-Consumptive) And Thus, A Vicious Spiral Is Begun That Results In Massive Layoffs And Cuts In Production As Businesses Attempt To Equilibrate Aggregate Supply And Demand. Thus, Full Employment Is Only One Of Many Or Multiple Macro Equilibria. If An Economy Reaches An Underemployment Equilibrium, Something Is Necessary To Boost Or Stimulate Demand To Produce Full Employment. This Something Could Be Business Investment But Because Of The Logic And Individualist Nature Of Investment Decisions, It Is Unlikely To Rapidly Restore Full Employment. Keynes Logically Seizes Upon The Public Budget And Government Expenditures As The Quickest Way To Restore Full Employment. Borrowing The Money To Finance The Deficit From Private Households And Businesses Is A Quick, Direct Way To Restore Full Employment While At The Same Time, Redirecting Or Siphoning Off The Funds From The Private Sector Which Caused The Over-Production Is In The First Place. Keynes S Theory Is Unquestionably Significant In Understanding Of Modern Economics. Far From Being Destructive, It Alone Has Been Responsible For Nearly 60 Years Of Growth Without A Major Depression As We Experienced Worldwide In The 1930S.While The Present Book Is Indispensable For The Students, Researchers And Teachers Of Economics, It Is Highly Useful For The General Readers Keenly Interested In Understanding Nation S Economy.

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A History of Murphy s Law

Murphy's Law is one of the most well-recognized statements of philosophy known to man. Tipped off by his next door neighbor that Murphy may have worked at Edwards Air Force Base, and that the Law may have come into being after a rocket sled experiment went awry, author Nick T. Spark beings a Quixotic quest to learn the truth. His attempts to pin down the mysterious origins of The Law and to answer the eternal question, "Who was Murphy and what is the true meaning of Murphy's Law?" are both amusing and relevatory. Read it, and find out why everything you ever thought you knew about Murphy's Law -- is wrong.

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The Picture of Dorian Gray

Oscar Wilde A été écrit sous une forme ou une autre pendant la plus grande partie de sa vie. Vous pouvez trouver autant d'inspiration de The Picture of Dorian Gray Aussi informatif et amusant. Cliquez sur le bouton TÉLÉCHARGER ou Lire en ligne pour obtenir gratuitement le livre de titre $ gratuitement.

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Understanding Networked Multimedia

Covers all networking, multimedia applications and technology in one volume. Has a tutorial approach to the subject, complete with formal definitions, glossary (500 terms), 230 illustrations, a list of frequently asked questions, real world examples and analogies, and end-of-chapter summaries. Sophisticated technologies are explained in a rigorous but easy-to- understand way. Network managers and administrators handling private and public LANs or WANs, system designers, computer industry product developers, and multimedia IS managers.