Reviewing Statistical Questions

Arm Span

Work Time

Arm Span

What is the typical arm span of a sixth grade student?

  • Think about how this question could be answered.

Challenge Problem

Choose several questions you wrote in Task 3.

  • What is the set (or range) of possible answers for each question?
  • What number in each range do you think reflects a typical sixth grader?


  • The arm span of a sixth grade student varies, but the answer to this question is a single number.
  • How could you collect data to answer this question?
  • How would you do the measurements?
  • How could you use the data you collected to determine a single, typical arm span?