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Chapters 1 and 2 — Introduction to Data and the Normal Distribution

This unit introduces students to the foundation of statistical thinking by exploring how data are described and summarized. Students learn to distinguish between quantitative and categorical variables, create and interpret graphical displays like histograms, stemplots, and boxplots, and calculate measures of center and spread.

Building on this, students are introduced to the Normal distribution and density curves. They will learn to calculate z-scores to represent relative standing and use the Empirical Rule (68-95-99.7) to estimate proportions.

Key topics include interpreting percentiles, finding areas under the Normal curve using Table A or technology, and understanding how mean (μ) and standard deviation (σ) act as parameters for a Normal model. Together, these chapters develop students' ability to see patterns in data and apply fundamental concepts that support deeper analysis throughout the course.


AP Statistics Ch 1 and 2 Lessons on Normal Distributions

Download comprehensive AP Statistics lesson notes on SOCS (Shape, Outliers, Center, Spread) and calculating z-scores. Our materials cover everything from histograms to Normal distribution calculations with practice problems and solutions

Answer Keys to AP Statistics Ch1 and 2 Assignments.

All answer keys are prepared by students at Moscrop Secondary School

Practice Quizzes

Quick self-checks and formative quizzes.