1. A Typical Math Student

2. About the Class Class: Eighth Grade Algebra
Students: Boys and Girls, years old
Number of Students: 26
We measured
Height
Hand Span
Wrist Circumference

3. Measures of Center
Mean: The average. Add all data points, then divide by the number of data points.
Median: The middle data point in an ordered list.
Mode: The data value that occurs the most.

4. Class Heights Mean = 171 cm Median = 172.9 cm Mode = 160 cm
The middle 50% of the class has heights between 160 cm cm.

5. Height

6. Class Hand Spans Mean = 20.6 cm Median = 20 cm Mode = 20 cm
The middle 50% of the class has hand spans between 19 cm cm.

7. Hand Span

8. Class Wrist Circumferences
Mean = 16.6 cm
Median = cm
Mode = 15 cm
The middle 50% of the class has wrist circumferences between 15 cm cm.

9. Wrist Circumference

10. Summary The typical math student has: A Height = 171 cm
A Hand Span = 20.6 cm
A Wrist Circumference = 16.6 cm