My Math Forum The paradox birthday for more than 2 people

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 March 27th, 2019, 06:51 AM #1 Newbie   Joined: Mar 2019 From: Spain Posts: 1 Thanks: 0 The paradox birthday for more than 2 people Hello. The paradox of birthday is very well known but refers to at least two people. Then, what is the probability if at least 3 people or n people have the same birthday? Thank you.
 March 27th, 2019, 01:23 PM #2 Global Moderator   Joined: May 2007 Posts: 6,835 Thanks: 733 3 or n out of how many?
 March 27th, 2019, 02:23 PM #3 Global Moderator   Joined: Dec 2006 Posts: 21,036 Thanks: 2273 See this article.
March 28th, 2019, 03:24 AM   #4
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March 28th, 2019, 06:38 AM   #5
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 Originally Posted by Pichurrete Hello. The paradox of birthday is very well known but refers to at least two people. Then, what is the probability if at least 3 people or n people have the same birthday? Thank you.
The whole point about being introduced to the birthday paradox (in relation to the mathematics) is to be able to calculate the probabilities yourself. The technique usually used (re-framing the problem) is extremely important in probability. You should be able to work out the probabilities for yourself once you've seen it done for two people.

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