Unit 9 — One-Variable Statistics

Unit 9 · One-Variable Statistics

One-Variable Statistics

Collect, display, and analyze single-variable data using measures of center and spread, dot plots, histograms, and box plots — then compare distributions and identify outliers.

Estimated Time

30–40 minutes

Difficulty

Intermediate

6 Lessons
6 Learning Goals
10 Vocabulary Terms

Overview

Unit description, learning objectives, and skills.

Unit 9 — One-Variable Statistics teaches you to make sense of data. You will calculate measures of center and spread, construct and interpret dot plots, histograms, and box plots, and compare data distributions to draw meaningful conclusions.

Learning Objectives

By the end of this unit, you will be able to:

Goal 1Calculate and interpret mean, median, and mode for a data set.
Goal 2Calculate range, interquartile range (IQR), and mean absolute deviation (MAD).
Goal 3Create and interpret dot plots and histograms.
Goal 4Construct and interpret box plots using the five-number summary.
Goal 5Identify outliers using the IQR method.
Goal 6Compare two or more data distributions using measures of center and spread.

Skills You Will Master

Measures of center
Measures of spread
Dot plots & histograms
Box plots
Identifying outliers
Comparing distributions

Real-World Connection

Statistics is the language of data-driven decision making. Doctors use measures of center and spread to interpret clinical trial results. Sports analysts use box plots to compare player performance. Businesses use histograms to understand customer behavior. Educators use data distributions to evaluate student achievement. In an age of big data, the ability to collect, display, and analyze single-variable data is one of the most practical and transferable skills you can develop in a mathematics course.

Chapter Checklist

Recommended steps for completing each chapter

  • Read the Workbook
  • Complete the Independent Study
  • Finish the Exit Ticket
  • Take the Quiz
  • Review the Answer Key
  • Continue to the Next Chapter