Unit 5 Contents

1. Report to the class the average circumference of the heads of the students in your group.
   Give the mean.
2. Compare the means for all the groups. What can you say about them?
3. Estimate the average circumference for the whole class using the means for each group.
1. How would you find the mean if there were five people in your group?
2. Three people?
5. How could you use a calculator to find the mean? (Hint: What steps did you go through to find the mean using the strips?)

Using a Calculator to Find the Mean

Michael's group used a chart to think through their answer to Question 5.