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The Weekend Edition Saturday Math Guy, Stanford professor Keith Devlin, has a problem. In fact, he has more than one... which he's happy to share with Scott Simon. What is the probability that in a ...

See if you can figure out Cheryl’s birthday, the Singapore logic problem that’s got the Internet twisted into knots. Some are even saying it’s the math equivalent of the “What color is the dress” ...

(CNN) — 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 ...

(via SciShow) There's a rather famous problem in math of probability called the Birthday Paradox. Let's get into how it works, and how creative uses of this hypothetical problem have real-world ...

Here's a fun brain teaser: How large does a random group of people have to be for there to be a 50% chance that at least two of the people will share a birthday? The answer is 23, which surprises many ...