To test a theory. (Shared Birthdays)
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I believe you are a bit wrong. If you have 366 people, you can guarantee that at least 2 people share birthdays. It´s called "the Pigeonhole principle" http://en.wikipedia.org/wiki/Pigeonhole_principle[^]
The way I know it: If you have 366 people in a room, it's guaranteed (100%) that at least 2 share their birthday, which is obvious. If you have 23 people in a room, it's likely (> 50%) that at least 2 share their birthday, which is not obvious, but it's mathematically proved to be true.
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Young Henry mentioned his mother's Birthday below and it reminded me of a probability experiment that states if 23 people are in a room, it is more likely than less that 2 of them share a birthday. What date is your birthday people? Mine is 31st March. Let us see if the first 23 posters to this can get a matching pair?
------------------------------------ "When Belly Full, Chin Hit Chest" Confucius 502BC
19th Jun.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
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Young Henry mentioned his mother's Birthday below and it reminded me of a probability experiment that states if 23 people are in a room, it is more likely than less that 2 of them share a birthday. What date is your birthday people? Mine is 31st March. Let us see if the first 23 posters to this can get a matching pair?
------------------------------------ "When Belly Full, Chin Hit Chest" Confucius 502BC
June 7. First day of Vestalia.
_____________________________ Will work for ... BRAINS!!! BRAINS!!!!
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Young Henry mentioned his mother's Birthday below and it reminded me of a probability experiment that states if 23 people are in a room, it is more likely than less that 2 of them share a birthday. What date is your birthday people? Mine is 31st March. Let us see if the first 23 posters to this can get a matching pair?
------------------------------------ "When Belly Full, Chin Hit Chest" Confucius 502BC
July 16. When can we se your analysis of this experiment? ;)
-- Time you enjoy wasting is not wasted time - Bertrand Russel
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17 Feb
Christian Graus Driven to the arms of OSX by Vista. Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.
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Jun 10
Jon "One loves to possess arms, though they hope never to have occasion for them." --Thomas Jefferson to George Washington, 1796. Soap Box 1.0: the first, the original, reborn troll-less
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Young Henry mentioned his mother's Birthday below and it reminded me of a probability experiment that states if 23 people are in a room, it is more likely than less that 2 of them share a birthday. What date is your birthday people? Mine is 31st March. Let us see if the first 23 posters to this can get a matching pair?
------------------------------------ "When Belly Full, Chin Hit Chest" Confucius 502BC
February 12
If the post was helpful, please vote, eh! Current activities: Book: Devils by Fyodor Dostoyevsky Project: Hospital Automation, final stage Learning: Image analysis, LINQ Now and forever, defiant to the end. What is Multiple Sclerosis[^]?
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July 16. When can we se your analysis of this experiment? ;)
-- Time you enjoy wasting is not wasted time - Bertrand Russel
I will publish an analysis later today, but already there are several shared birthdays.
------------------------------------ "When Belly Full, Chin Hit Chest" Confucius 502BC
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I will publish an analysis later today, but already there are several shared birthdays.
------------------------------------ "When Belly Full, Chin Hit Chest" Confucius 502BC
So long as we get presents...
If the post was helpful, please vote, eh! Current activities: Book: Devils by Fyodor Dostoyevsky Project: Hospital Automation, final stage Learning: Image analysis, LINQ Now and forever, defiant to the end. What is Multiple Sclerosis[^]?
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Young Henry mentioned his mother's Birthday below and it reminded me of a probability experiment that states if 23 people are in a room, it is more likely than less that 2 of them share a birthday. What date is your birthday people? Mine is 31st March. Let us see if the first 23 posters to this can get a matching pair?
------------------------------------ "When Belly Full, Chin Hit Chest" Confucius 502BC
This is just basic probability. One of my favourite maths experiments is to ask people whether or not they are more likely to roll two consecutive 6s with a dice or a 2 then a 3.
"WPF has many lovers. It's a veritable porn star!" - Josh Smith
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I believe you are a bit wrong. If you have 366 people, you can guarantee that at least 2 people share birthdays. It´s called "the Pigeonhole principle" http://en.wikipedia.org/wiki/Pigeonhole_principle[^]
You would need 367 if one of the people in the room was my younger brother - 29th Feb
==================================== Transvestites - Roberts in Disguise! ====================================
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You would need 367 if one of the people in the room was my younger brother - 29th Feb
==================================== Transvestites - Roberts in Disguise! ====================================
Chris Quinn wrote:
You would need 367 if one of the people in the room was my younger brother - 29th Feb
Or my former boss.
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Young Henry mentioned his mother's Birthday below and it reminded me of a probability experiment that states if 23 people are in a room, it is more likely than less that 2 of them share a birthday. What date is your birthday people? Mine is 31st March. Let us see if the first 23 posters to this can get a matching pair?
------------------------------------ "When Belly Full, Chin Hit Chest" Confucius 502BC
The probability of at least two people sharing the same birthday is 0.5073. Yay, I've found a use for Wolfram Alpha! http://www04.wolframalpha.com/input/?i=same+birthday&f1=23&f=BirthdayProblem.n_23&x=5&y=9[^]
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The probability of at least two people sharing the same birthday is 0.5073. Yay, I've found a use for Wolfram Alpha! http://www04.wolframalpha.com/input/?i=same+birthday&f1=23&f=BirthdayProblem.n_23&x=5&y=9[^]
That crashed my IE8.
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Young Henry mentioned his mother's Birthday below and it reminded me of a probability experiment that states if 23 people are in a room, it is more likely than less that 2 of them share a birthday. What date is your birthday people? Mine is 31st March. Let us see if the first 23 posters to this can get a matching pair?
------------------------------------ "When Belly Full, Chin Hit Chest" Confucius 502BC
9th May
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Young Henry mentioned his mother's Birthday below and it reminded me of a probability experiment that states if 23 people are in a room, it is more likely than less that 2 of them share a birthday. What date is your birthday people? Mine is 31st March. Let us see if the first 23 posters to this can get a matching pair?
------------------------------------ "When Belly Full, Chin Hit Chest" Confucius 502BC
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Young Henry mentioned his mother's Birthday below and it reminded me of a probability experiment that states if 23 people are in a room, it is more likely than less that 2 of them share a birthday. What date is your birthday people? Mine is 31st March. Let us see if the first 23 posters to this can get a matching pair?
------------------------------------ "When Belly Full, Chin Hit Chest" Confucius 502BC
16th of August
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Young Henry mentioned his mother's Birthday below and it reminded me of a probability experiment that states if 23 people are in a room, it is more likely than less that 2 of them share a birthday. What date is your birthday people? Mine is 31st March. Let us see if the first 23 posters to this can get a matching pair?
------------------------------------ "When Belly Full, Chin Hit Chest" Confucius 502BC
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Hmm, 21st I think, which is a shame because it would have matched mine - 30th Oct :-)