A recent paper by Miami CEC professor Qihou Zhou provides a new model for solving the classic “birthday problem.” by CEC Communication & Marketing • Published 2/29/24 In its original form, the ...

The Weekend Edition Saturday Math Guy, Stanford professor Keith Devlin, returns to pose a problem to Scott Simon: What is the probability that in a room filled with 23 people at least two of them ...

The Birthday Problem A page by Professor Siegrist with a link to a simulation of the birthday problem is found here. When you reach this page, scroll down until you reach red underlined text that says ...

Forget Common Core. Can you figure out Cheryl's birthday, the math problem that's sweeping the internet? Published: Apr. 16, 2015, 1:38 a.m.

What was going on? There is a counterintuitive phenomenon known as "the birthday problem" or "the birthday paradox", which mathematicians like to use to confound our expectations.

How many people do you have to put into a room before you are guaranteed that at least two of them share a birthday? We all know and love the blissful feeling of winning an argument. Well, trust ...

Are you smarter than a really smart Singapore high school student? See if you can figure out Cheryl’s birthday, the Singapore logic problem that’s got the Internet twisted into knots. Some are ...

Cheryl’s birthday challenge was meant to test the better high-school students competing in the Singapore and Asian Schools Math Olympiad, held April 8. Here it is: Cheryl has a birthday, and she ...