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Appendix D Learning Check Solutions

If you detect any errors or have suggestions regarding these solutions, please file an issue at the ModernDive GitHub repository or, ideally, create a Pull Request on GitHub on the same repository making the suggested changes yourself for us to review. Thanks!
In this PreTeXt edition, learning check answers are embedded directly within each chapter as Answer elements inside the corresponding <exercise> blocks. Navigate to any exercise block in the relevant chapter to find the solution. The chapters and their learning check ranges are:
Table D.0.1. Learning check locations by chapter
Chapter Learning checks Location
Chapter 1 (Getting Started) LC1.1–LC1.7 Checkpoint 1.3.4–Checkpoint 1.4.5 in Chapter 1
Chapter 2 (Data Visualization) LC2.1–LC2.37 Checkpoint 2.3.1–Checkpoint 2.8.21 in Chapter 2
Chapter 3 (Data Wrangling) LC3.1–LC3.20 Checkpoint 3.2.2–Checkpoint 3.9.2 in Chapter 3
Chapter 4 (Tidy Data) LC4.1–LC4.5 Exercise 4.2.1.1–Exercise 4.3.2 in Chapter 4
Chapter 5 (Regression) LC5.1–LC5.19 Exercise 5.1.1.1–Exercise 5.3.2.1 in Chapter 5
Chapter 6 (Multiple Regression) LC6.1–LC6.12 Exercise 6.1.2.1–Exercise 6.2.2.5 in Chapter 6
Chapter 7 (Sampling) LC7.1–LC7.18 Exercise 7.1.2.2.1–Exercise 7.5.1.2.1 in Chapter 7
Chapter 8 (Confidence Intervals) LC8.1–LC8.18 Exercise 8.1.1.1–Exercise 8.2.5.3.5 in Chapter 8
Chapter 9 (Hypothesis Testing) LC9.1–LC9.15 Exercise 9.4.2.1–Exercise 9.6.3.6.7 in Chapter 9
Chapter 10 (Inference for Regression) LC10.1–LC10.26 Exercise 10.1.6.3.1–Exercise 10.6.2.4 in Chapter 10
Chapter 11 (Tell Your Story with Data) LC11.1–LC11.5 Exercise 11.2.5.3.1–Exercise 11.3.2.1 in Chapter 11
Appendix A (Statistical Background) LCA.1–LCA.2 Exercise A.2.1.1–Exercise A.2.1.2 in Appendix A