01111nam--2200385---450-99000336337020331620100121174614.0978-88-6088-039-0000336337USA01000336337(ALEPH)000336337USA0100033633720100121d2009----km-y0itay50------baitaIT||||||||001yyDel racconto e dintorniJulio Cortázara cura di Bruno ArpaiaParmaGuanda2009184 p.22 cmBiblioteca della fenice2001Biblioteca della feniceRaccontiSaggiBNCF863.6408CORTÁZAR,Julio384377ARPAIA,BrunoITsalbcISBD990003363370203316VI.5.E. 2702507 L.G.VI.5.0015620BKUMAGIUSY9020100121USA011736GIUSY9020100121USA011740GIUSY9020100121USA011746Del racconto e dintorni1123698UNISA01866oam 2200493 450 991071706600332120211215150742.0(CKB)5470000002527545(OCoLC)992124553(EXLCZ)99547000000252754520170628d1992 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierSimplified modeling of air flow dynamics in SSD radon mitigation systems for residences with gravel beds: project summary /by T.A. Reddy [and four others]Research Triangle Park, NC :United States Environmental Protection Agency, Research and Development, Air and Energy Engineering Research Laboratory,1992.1 online resource (6 pages) illustrations"EPA/600/SR-92/090.""December 1992."Simplified modeling of air flow dynamics in SSD radon mitigation systems for residences with gravel bedsRadonSafety measuresAir flowMathematical modelsRadon mitigationGravelAir flowMathematical modelsfastRadonSafety measuresfastRadonSafety measures.Air flowMathematical models.Radon mitigation.Gravel.Air flowMathematical models.RadonSafety measures.Reddy T. A.1413755Air and Energy Engineering Research Laboratory,UNDUNDOCLCAGPOBOOK9910717066003321Simplified modeling of air flow dynamics in SSD radon mitigation systems for residences with gravel beds: project summary3524927UNINA05159nam 22006614a 450 991083068910332120230617031142.01-280-36626-597866103662620-470-31811-20-471-45865-10-471-45871-6(CKB)1000000000019028(EBL)468893(OCoLC)609847619(SSID)ssj0000300435(PQKBManifestationID)11232936(PQKBTitleCode)TC0000300435(PQKBWorkID)10251094(PQKB)11331727(MiAaPQ)EBC468893(EXLCZ)99100000000001902820021021d2003 uy 0engur|n|---|||||txtccrIntroductory biostatistics for the health sciences[electronic resource] modern applications including bootstrap /Michael R. Chernick and Robert H. FriisHoboken, N.J. Wiley-Intersciencec20031 online resource (426 p.)Wiley series in probability and statisticsDescription based upon print version of record.0-471-41137-X Includes bibliographical references and index.Introductory Biostatistics for the Health Sciences; Contents; Preface; 1. What is Statistics? How is it Applied in the Health Sciences?; 1.1 Definitions of Statistics and Statisticians; 1.2 Why Study Statistics?; 1.3 Types of Studies; 1.3.1 Surveys and Cross-Sectional Studies; 1.3.2 Retrospective Studies; 1.3.3 Prospective Studies; 1.3.4 Experimental Studies and Quality Control; 1.3.5 Clinical Trials; 1.3.6 Epidemiological Studies; 1.3.7 Pharmacoeconomic Studies and Quality of Life; 1.4 Exercises; 1.5 Additional Reading; 2. Defining Populations and Selecting Samples2.1 What are Populations and Samples?2.2 Why Select a Sample?; 2.3 How Samples Can be Selected; 2.3.1 Simple Random Sampling; 2.3.2 Convenience Sampling; 2.3.3 Systematic Sampling; 2.3.4 Stratified Random Sampling; 2.3.5 Cluster Sampling; 2.3.6 Bootstrap Sampling; 2.4 How to Select a Simple Random Sample; 2.5 How to Select a Bootstrap Sample; 2.6 Why Does Random Sampling Work?; 2.7 Exercises; 2.8 Additional Reading; 3. Systematic Organization and Display of Data; 3.1 Types of Data; 3.1.1 Qualitative; 3.1.2 Quantitative; 3.2 Frequency Tables and Histograms; 3.3 Graphical Methods3.3.1 Frequency Histograms3.3.2 Frequency Polygons; 3.3.3 Cumulative Frequency Polygon; 3.3.4 Stem-and-Leaf Diagrams; 3.3.5 Box-and-Whisker Plots; 3.3.6 Bar Charts and Pie Charts; 3.4 Exercises; 3.5 Additional Reading; 4. Summary Statistics; 4.1 Measures of Central Tendency; 4.1.1 The Arithmetic Mean; 4.1.2 The Median; 4.1.3 The Mode; 4.1.4 The Geometric Mean; 4.1.5 The Harmonic Mean; 4.1.6 Which Measure Should You Use?; 4.2 Measures of Dispersion; 4.2.1 Range; 4.2.2 Mean Absolute Deviation; 4.2.3 Population Variance and Standard Deviation; 4.2.4 Sample Variance and Standard Deviation4.2.5 Calculating the Variance and Standard Deviation from Group Data4.3 Coefficient of Variation (CV) and Coefficient of Dispersion (CD); 4.4 Exercises; 4.5 Additional Reading; 5. Basic Probability; 5.1 What is Probability?; 5.2 Elementary Sets as Events and Their Complements; 5.3 Independent and Disjoint Events; 5.4 Probability Rules; 5.5 Permutations and Combinations; 5.6 Probability Distributions; 5.7 The Binomial Distribution; 5.8 The Monty Hall Problem; 5.9 A Quality Assurance Problem; 5.10 Exercises; 5.11 Additional Reading; 6. The Normal Distribution6.1 The Importance of the Normal Distribution in Statistics6.2 Properties of Normal Distributions; 6.3 Tabulating Areas under the Standard Normal Distribution; 6.4 Exercises; 6.5 Additional Reading; 7. Sampling Distributions for Means; 7.1 Population Distributions and the Distribution of Sample Averages from the Population; 7.2 The Central Limit Theorem; 7.3 Standard Error of the Mean; 7.4 Z Distribution Obtained When Standard Deviation Is Known; 7.5 Student's t Distribution Obtained When Standard Deviation Is Unknown; 7.6 Assumptions Required for t Distribution; 7.7 Exercises7.8 Additional ReadingAccessible to medicine- and/or public policy-related audiences, as well as most statisticians.Emphasis on outliers is discussed by way of detection and treatment.Resampling statistics software is incorporated throughout.Motivating applications are presented in light of honest theory.Plentiful exercises are sprinkled throughout.Wiley series in probability and statistics.Medical statisticsBiometryMedical statistics.Biometry.519.502461610.72Chernick Michael R140081Friis Robert H1603121MiAaPQMiAaPQMiAaPQBOOK9910830689103321Introductory biostatistics for the health sciences3927375UNINA