【簡介】 Description Elementary Statistics: A Step by Step Approach was written as an aid in the beginning statistics course to students whose mathematical background is limited to basic algebra. The book follows s a nontheoretical approach without formal proofs, explaining concepts intuitively and supporting them with abundant examples. The applications span a broad range of topics certain to appeal to the interests of students of diverse backgrounds, and they include problems in business, sports, health, architecture, education, entertainment, political science, psychology, history, criminal justice, the environment, transportation, physical sciences, demographics, and travel and leisure. Global Changes Replaced over 100 examples with new or updated ones and over 550 new or updated exercises. Updated the Technology Tips sections. Renumbered statistical tables in the Appendix A. Most exercises include the TI answers along with the answers that use the tables in the book. Chapter Changes Chapter 1 New Statistics Today example. New statistical examples to introduce how statistics are used today. Chapter 2 Updated Statistics Today example. Chapter 5 Section 5-3 now includes solving problems using the combination formula in addition to the binomial formula. Chapters 7, 8, and 9 These chapters have been revised to allow professors who want to teach proportions before means to do so. They should cover the first sections of these chapters and then skip to the proportions sections, and then do the means sections. For those who prefer to teach means before proportions, just follow the sequence of the book. Chapters 8, 9, 10, 11, and 12 These chapters allow professors to teach hypothesis testing using the P-value. It should be noted that some P-values obtained by technology may differ from those in the book since the calculations of P-values depend on the number of decimal places the technology uses to compute the test values. Chapter 14 New section on Big Data. 【目錄】 Table of Contents CHAPTER 1: The Nature of Probability and Statistics CHAPTER 2: Frequency Distributions and Graphs CHAPTER 3: Data Description CHAPTER 4: Probability and Counting Rules CHAPTER 5: Discrete Probability Distributions CHAPTER 6: The Normal Distribution CHAPTER 7: Confidence Intervals and Sample Size CHAPTER 8: Hypothesis Testing CHAPTER 9: Testing the Difference Between Two Means, Two Proportions, and Two Variances CHAPTER 10: Correlation and Regression CHAPTER 11: Other Chi-Square Tests CHAPTER 12: Analysis of Variance CHAPTER 13: Nonparametric Statistics CHAPTER 14: Sampling and Simulation Appendix A: Tables Appendix B: Data Bank Appendix C: Glossary Appendix D: Selected Answers Appendix E: Important Formulas