Stage: 3 and 4 Challenge Level: 
This interactivity allows you to record successful and unsuccessful outcomes from an experiment Data can be displayed as a graph or a table. Data from the table can be copied and pasted into a spreadsheet for further analysis.
Full screen version
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NRICH is part of the family of activities in the Millennium Mathematics Project, which also includes the Plus and Motivate sites.
email: nrich@damtp.cam.ac.uk