CK-12 Foundation
Ck 12: Statistics: Double Box and Whisker Plots Grades 9 10
[Free Registration/Login may be required to access all resource tools.] Construct and use double box-and-whisker plots.
University of Cambridge
University of Cambridge: Nrich: Graphing Number Patterns
On this one page website sharpen your logic, graphing and pattern recognition skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: A Square Deal
On this one page website sharpen your logic, ordered pairs, and pattern recognition skills while working on this challenge. The solution is available to double check your solution.
Other
Stat Soft: Statistics Glossary
Dozens of statistical terms are defined and illustrated in this glossary.