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Instructor Overview

Students write statistical questions that can be used to find information about a typical sixth grade student. Then, the class works together to informally plan how to find the typical arm span of a student in their class.

Key Concepts

  • Statistical thinking, in large part, must deal with variability; statistical problem solving and decision making depend on understanding, explaining, and quantifying the variability in the data.
  • “How tall is a sixth grader?” is a statistical question because all sixth graders are not the same height—there is variability.

Goals and Learning Objectives

  • Understand what a statistical question is.
  • Realize there is variability in data and understand why.
  • Describe informally the range, median, and mode of a set of data.