Electronic Proceedings of the Thirteenth Annual Conference on Technology in Collegiate Mathematics


How Many Heads in a Row Is Enough? Analyzing Runs with the TI-83+

Karen Benbury
Mathematics Department
Bowie State University
Bowie, MD 20715
Phone: (301) 860-3354
Fax: (301) 860-3438
E-mail: kbenbury@bowiestate.edu


In elementary probability, some students may be asked to toss a fair coin 200 times, while others "make up" the results. Usually, the data from actual tosses can be distinguished from the fake by counting the length of the longest run - students generally underestimate. The run data from coin tossing and some other related experiments will be explored using the TI-83+.