Source: wikibot/birthday-effect
= Birthday effect
{wiki=Birthday_effect}
The "birthday effect" is a term that can refer to a few different concepts depending on the context, but it is most commonly associated with two interpretations: 1. **Statistical Phenomenon**: In probability theory, the term often relates to the "birthday paradox," which refers to the counterintuitive result that in a group of just 23 people, there is about a 50% chance that at least two individuals share the same birthday.