The Birthday Problem

After discussing the solution to the Birthday Problem, someone at Queen’s University in Cananda says:

The more people there are in a group, the higher the chances of any two people having a birthday match. The probability is: 70% for 30 people 90% for 41 people 95% for 47 people over 99% for 57 people.

Dr. Math also discusses how to solve the birthday problem. Dr. Reese of the Mathematics, Science, and Technology Education program at the University of Illinois at Urbana-Champagne allows you to run your own simulation.