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Matching Birthdays

An interesting and well-known riddle in the area of probability is "The Birthday Problem." You can find information about this problem in many introductory books in probability, probability and statistics, and math tricks books for laymen. This problem falls in the category of problems called counter-intuitive -- meaning that you may be surprised at the answer.


Phyllis A. Salmons

Date Accepted: 2000-01-06 Grade Group: High School (9-12) Benchmarks: M7.4.2 M7.4.3 M7.4.6 M7.4.11 M7.4.15 Keywords: probability exponents counter-intuitive result Microsoft Word: 06_07_99_1.docx PDF Document: 06_07_99_1.pdf