Preface -- Acknowledgments -- About the Author -- Concepts, Variables, and Measurement: Introduction -- Concepts -- Why Statistics? -- Variables -- Measurement -- Graphical Representation of Data (What Data "Look" Like) -- Validity and Reliability -- Chapter Summary -- Frequency Tables: Introduction -- Toxic Waste and "Superfund" -- Frequency Tables -- Superfund Sites: Frequency Table for a Nominal Variable -- Frequency Table for an Ordinal Variable -- Frequency Table for an Interval/Ratio Variable -- Chapter Summary -- Measures of Central Tendency: Introduction -- Averages and Energy Consumption -- Definitions of Mode, Median, And Mean -- Calculating Measures of Central Tendency With Raw Data -- Calculating Measures of Central Tendency With Grouped Data -- Chapter Summary -- Measures of Dispersion: Introduction -- The Distribution of Education in the United States -- Range -- Interquartile Range -- Mean Absolute Deviation -- Variance (S2) -- Standard Deviation (S) -- Standard Deviation and the Normal Curve -- Chapter Summary -- Probability and the Normal Curve: Introduction -- Intelligence, Life Chances, And Inequality -- The Fundamentals of Probability -- Probability Using Frequency Tables -- Probability and the Normal Curve -- Using z-Scores to Find Percentiles -- Chapter Summary -- Probability From Samples to Statistics: Introduction -- The Politics of Sampling: Global Warming and Political Party Affiliation -- Sampling and Statistics -- The Standard Error of the Mean -- The Standard Error of the Proportion -- Other Confidence Intervals -- The t Distribution -- Hypotheses and Testing Differences Between Means -- Potential Errors: Type I and Type II -- Chapter Summary -- Cross-tabulation and Chi-Square: Introduction -- The "Environmental Decade" -- Cross-tabulation Tables -- Cross-tabulation and the Chi-Square Test of Statistical Significance -- Chapter Summary -- Measures of Association for Categorical Variables: Introduction -- Social Institutions and Social Control -- Nominal Measures of Association -- Ordinal Measures of Association -- Chapter Summary Analysis of Variance: Introduction -- Smoking on Campus -- Analysis of Variance -- Chapter Summary -- Correlation and Regression: Introduction -- Unequal America -- Scatterplots: The Underlying Logic Behind Correlation -- Correlation -- Linear Regression -- Chapter Summary -- Appendix -- Answers to Chapter Exercises -- Answers to In-Class Exercises -- Glossary -- References -- Index