birthday problem

mathematical problem

Wikidata entity: Q339000

Wikimedia Commons category is Birthday paradox

P373	Commons category	String	Birthday paradox	???
P2534	defining formula	Math	$\begin{aligned} \bar{p} (n) & = 1 \times (1 - \frac{1}{365}) \times (1 - \frac{2}{365}) \times \dots \times (1 - \frac{n - 1}{365}) \\ = \frac{365 \times 364 \times \dots \times (365 - n + 1)}{36 5^{n}} \\ = \frac{365!}{36 5^{n} (365 - n)!} = \frac{n! \cdot (\binom{365}{n})}{36 5^{n}} = \frac{_{365} P_{n}}{36 5^{n}} \end{aligned}$	???
P1343	described by source	...	Q47482102 (Security Engineering: A Guide to Building Dependable Distributed Systems, 2nd edition)	Security Engineering: A Guide to Building Dependable Distributed Systems, 2nd edition
P31	instance of	...	Q1166625 (mathematical problem)	mathematical problem
P921	main subject	...	Q9492 (probability)	probability
P6104	maintained by WikiProject	...	Q8487137 (WikiProject Mathematics)	WikiProject Mathematics

External Ids

P6564	Brilliant Wiki ID	birthday-paradox
P1417	Encyclopædia Britannica Online ID	topic/birthday-problem
P646	Freebase ID	/m/0jp97
P2812	MathWorld ID	BirthdayProblem
P12888	Metamath statement ID	birthday
P6366	Microsoft Academic ID (discontinued)	152865758
P8885	Namuwiki ID	생일 문제
P6781	ProofWiki ID	Birthday_Paradox
P3417	Quora topic ID	Birthday-Problem
P5047	Rosetta Code page ID	Birthday_problem

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