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x Contents Lesson 1.7 Measuring Variability / 69 The Range 69 The Standard Deviation 70 The Interquartile Range 73 Your Turn Lesson 1.7 Why are there so few chips in the bag? 76 Lesson 1.7 Exercises 77 Lesson 1.8 Summarizing Quantitative Data: Boxplots and Outliers / 80 Identifying Outliers 80 Making and Interpreting Boxplots 81 Comparing Distributions with Boxplots 84 Your Turn Lesson 1.8 Which is best at reducing stress? 86 Lesson 1.8 Exercises 87STATS applied! RESOLVED 90 Chapter 1 Main Points / 91 Chapter 1 Review Exercises / 93 Chapter 1 Practice Test / 94 Chapter 1 Project / 97 See Yourself in Stats / 97 Modeling One-Variable Quantitative Data 98 STATS applied! Do You Sudoku? 99 Lesson 2.1 Describing Location in a Distribution / 100 Finding and Interpreting Percentiles 100 Finding and Interpreting Standardized Scores ( z -Scores) 102 Comparing Locations in Distributions of Quantitative Data 103 Your Turn Lesson 2.1 A House divided! 104 Lesson 2.1 Exercises 105 Lesson 2.2 Transforming Data / 109 Effect of Adding or Subtracting a Constant 109 Effect of Multiplying or Dividing by a Constant 111 Putting It All Together: Adding/Subtracting and Multiplying/Dividing 113 Your Turn Lesson 2.2 How much do rides cost at the amusement park? 115 Lesson 2.2 Exercises 116 Lesson 2.3 Density Curves and the Normal Distribution / 119 Density Curves 119 Describing Density Curves 121 Normal Distributions 123 Your Turn Lesson 2.3 Still waiting for the server? 125 Lesson 2.3 Exercises 126 Lesson 2.4 The Empirical Rule and Assessing Normality / 129 The Empirical Rule 129 Assessing Normality 132 Your Turn Lesson 2.4 How big is your fridge? 135 Lesson 2.4 Exercises 136 Lesson 2.5 Normal Distributions: Finding Areas from Values / 140 Finding Areas to the Left in a Normal Distribution 140 Finding Areas to the Right in a Normal Distribution 144 Finding Areas Between Two Values in a Normal Distribution 145 Your Turn Lesson 2.5 What cholesterol levels are unhealthy for teenagers? 147 Lesson 2.5 Exercises 148Chapter 2%u00a9 Bedford, Freeman & Worth Publishers. For review purposes only. Do not distribute.