Probability › Probability by counting › Birthday problem
Birthdays that are equal or adjacent
University · ●●●●○ 100 pts
Assume 23 people have independent birthdays, each equally likely to be any of 365 days (February 29 is not considered), and January 1 and December 31 are considered adjacent. Find the probability that at least two people share the same birthday or have adjacent birthdays. Round to seven decimal places.