A Short Textbook of Medical Statistics Sir Austin Bradford Hill Updated: Sun Aug 26, 2007 Front Matter-Preface-Contents Chapters The Aim of the Statistical Method Collection of Statistics - Sampling Collection of Statistics - Selection Collection of Statistics - Forms of Record and Inquiry Presentation of Statistics The Average The Variability of Observations Calculation of the Standard Deviation Problems of Sampling - Averages Problems of Sampling - Proportions Problems of Sampling - Differences between Proportions Problems of Sampling - Differences between Averages Problems of Sampling - Chi-Square Further Examples and Discussion of Chi-square Correlation and Regression Calculation of the Correlation Coefficient Standardized Death-Rates and Indices Lifetables and Survival after Treatment Measures of Morbidity Clinical Trials Common Fallacies and Difficulties Further Fallacies and Difficulties Further Fallacies and Difficulties Statistical Evidence and Inference Some Definitions Random Sampling Numbers Table of t Table of Chi-square Tables for Wilcoxon Tests: paired observations independent samples Index