Ever wondered about the odds of two people in a room sharing a birthday? Our Same Birthday Probability Calculator helps you instantly compute this fascinating statistical phenomenon, known as the Birthday Paradox. Discover the surprising likelihood even in small groups.
Formula:
The probability (P) of at least two people sharing a birthday in a group of 'n' people is calculated as:
P(n) = 1 - [ (365! ) / ( (365 - n)! * 365n ) ]
Where:
- P(n) = Probability of at least two people sharing a birthday.
- n = Number of people in the group.
- ! denotes the factorial function.
- We assume 365 days in a year (ignoring leap years for simplicity).