File:050329-birthday1.png

Description050329-birthday1.png	English: The birthday paradox: p(n) represents the probability that in a room with n people, some two (or more) will share the same birthday; q(n) represents the probability that in a room with n people, that at least one person will have the same birthday as a previously selected person. 中文：生日悖论 2个人生日相同和跟某人生日形同的概率变化
Date	29 March 2005
Source	self-made by en:User:Wzwz
Author	en:User:Wzwz
Permission (Reusing this file)	Public domainPublic domainfalsefalse I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Other versions	File:Birthday paradox.svg is a vector version of this file. It should be used in place of this PNG file when not inferior. File:050329-birthday1.png → File:Birthday paradox.svg For more information, see Help:SVG. In other languages Alemannisch ∙ Bahasa Indonesia ∙ Bahasa Melayu ∙ British English ∙ català ∙ čeština ∙ dansk ∙ Deutsch ∙ eesti ∙ English ∙ español ∙ Esperanto ∙ euskara ∙ français ∙ Frysk ∙ galego ∙ hrvatski ∙ Ido ∙ italiano ∙ lietuvių ∙ magyar ∙ Nederlands ∙ norsk bokmål ∙ norsk nynorsk ∙ occitan ∙ Plattdüütsch ∙ polski ∙ português ∙ português do Brasil ∙ română ∙ Scots ∙ sicilianu ∙ slovenčina ∙ slovenščina ∙ suomi ∙ svenska ∙ Tiếng Việt ∙ Türkçe ∙ vèneto ∙ Ελληνικά ∙ беларуская (тарашкевіца) ∙ български ∙ македонски ∙ нохчийн ∙ русский ∙ српски / srpski ∙ татарча/tatarça ∙ українська ∙ ქართული ∙ հայերեն ∙ বাংলা ∙ தமிழ் ∙ മലയാളം ∙ ไทย ∙ 한국어 ∙ 日本語 ∙ 简体中文 ∙ 繁體中文 ∙ עברית ∙ العربية ∙ فارسی ∙ +/−

Original edit history[edit]

Original upload log[edit]

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• (del) (cur) 22:21, 29 March 2005 . . en:User:Wzwz Wzwz ( en:User_talk:Wzwz Talk) . . 463x271 (2994 bytes) (it's pd generated with home.arcor.de/wzwz.de/einzel/birthday.zip ( also pd ))

Edit history from en:Wikipedia[edit]

• 18:04, 26 March 2006 Rei-artur
• 04:38, 26 December 2005 Bash (at least i THINK 'pd' refers to public domain; author doesnt claim copyright on the software either, so its a safe bet)
• 00:05, 30 March 2005 212.144.154.171 (sorry - once again wzwz, logged out)
• 23:21, 29 March 2005 Wzwz (it's pd generated with home.arcor.de/wzwz.de/einzel/birthday.zip ( also pd ))