PART I Producing Data 1
1 Where Do Data Come From? 3
2 Samples, Good and Bad 21
3 What Do Samples Tell Us? 39
4 Sample Surveys in the Real World 63
5 Experiments, Good and Bad 93
6 Experiments in the Real World 117
7 Data Ethics 141
8 Measuring 163
9 Do the Numbers Make Sense? 187
Part I Review 203
PART II Organizing Data 213
10 Graphs, Good and Bad 215
11 Displaying Distributions with Graphs 243
12 Describing Distributions with Numbers 267
13 Normal Distributions 293
14 Describing Relationships: Scatterplots and Correlation 315
15 Describing Relationships: Regression, Prediction, and Causation 339
16 The Consumer Price Index and Government Statistics 367
Part II Review 389
PART III Chance 403
17 Thinking about Chance 405
18 Probability Models 427
19 Simulation 445
20 The House Edge: Expected Values 465
Part III Review 481
PART IV Inference 491
21 What Is a Confidence Interval? 493
22 What Is a Test of Significance? 521
23 Use and Abuse of Statistical Inference 547
24 Two-Way Tables and the Chi-Square Test* 571
Part IV Review 595
*This material is optional.