# View PUMAS Example

## 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.

**Grade Level:** High School (9-12)

**Curriculum Topic Benchmarks:**
M7.4.2, M7.4.3, M7.4.6, M7.4.11, M7.4.15

**Subject Keywords:** Probability, Exponents, Counter-intuitive result

**Author(s):** Phyllis A. Salmons

**PUMAS ID:** 06_07_99_1

**Date Received:** 1996-06-07

**Date Revised:** 2000-01-04

**Date Accepted:** 2000-01-06

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