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  3. To test a theory. (Shared Birthdays)

To test a theory. (Shared Birthdays)

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  • D Dalek Dave

    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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    Ennis Ray Lynch Jr
    wrote on last edited by
    #23

    August 3rd. Apparently, I am now old according to all of my friends.

    Need custom software developed? I do C# development and consulting all over the United States. A man said to the universe: "Sir I exist!" "However," replied the universe, "The fact has not created in me A sense of obligation." --Stephen Crane

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    • D Dalek Dave

      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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      Marc Clifton
      wrote on last edited by
      #24

      My birthday (month, day, not year) is the same as Bill Clinton's. :cool: Explains a lot. :doh: Marc

      Will work for food. Interacx

      I'm not overthinking the problem, I just felt like I needed a small, unimportant, uninteresting rant! - Martin Hart Turner

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      • D Dalek Dave

        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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        leckey 0
        wrote on last edited by
        #25

        ...

        Back in the blog beatch! http://CraptasticNation.blogspot.com/[^]

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        • M Marc Clifton

          My birthday (month, day, not year) is the same as Bill Clinton's. :cool: Explains a lot. :doh: Marc

          Will work for food. Interacx

          I'm not overthinking the problem, I just felt like I needed a small, unimportant, uninteresting rant! - Martin Hart Turner

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          Mark_Wallace
          wrote on last edited by
          #26

          Marc Clifton wrote:

          My birthday (month, day, not year) is the same as Bill Clinton's.

          So you don't know the difference between European and African?

          I wanna be a eunuchs developer! Pass me a bread knife!

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          • M Mark_Wallace

            Marc Clifton wrote:

            My birthday (month, day, not year) is the same as Bill Clinton's.

            So you don't know the difference between European and African?

            I wanna be a eunuchs developer! Pass me a bread knife!

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            Mark_Wallace
            wrote on last edited by
            #27

            25th July, btw. And a quick head reckoning says that it's 39-40 people for an evens chance. Of course, it's 6.30 am, here, so my arithmetic might not be all that it can be.

            I wanna be a eunuchs developer! Pass me a bread knife!

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            • D Dalek Dave

              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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              Jwalant Natvarlal Soneji
              wrote on last edited by
              #28

              18th Sept. Anyone? . . . No one... :)

              Jwalant Natvarlal Soneji, BE IT, India

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              • D Dalek Dave

                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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                NandoMan
                wrote on last edited by
                #29

                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[^]

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                • D Dalek Dave

                  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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                  Alan Burkhart
                  wrote on last edited by
                  #30

                  18 January

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                  • M Mike Ellison

                    November 6. If anyone wants to send me a present then, let me know :-)

                    www.MishaInTheCloud.com

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                    Jorgen Sigvardsson
                    wrote on last edited by
                    #31

                    Yay! Mine's also November 6. :)

                    -- Kein Mitleid Für Die Mehrheit

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                    • D Dalek Dave

                      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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                      Reelix
                      wrote on last edited by
                      #32

                      12 June, and all alone...

                      -= Reelix =-

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                      • D Dalek Dave

                        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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                        cable beach
                        wrote on last edited by
                        #33

                        Actually, i think they share the same month, not the exact date. This is a theory of combinatorics (the pigeon hole principle) rather than probability. In any event: 13th February

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                        • D Dalek Dave

                          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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                          Aamir Butt
                          wrote on last edited by
                          #34

                          20th December

                          Bombing for Peace is like f****ing For Virginity" My Articles

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                          • D Dalek Dave

                            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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                            Hornwood509
                            wrote on last edited by
                            #35

                            7th January

                            -- For a moment, nothing happened. Then, after a second or so, nothing continued to happen --

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                            • N NandoMan

                              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[^]

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                              blackjack2150
                              wrote on last edited by
                              #36

                              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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                              • D Dalek Dave

                                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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                                CPallini
                                wrote on last edited by
                                #37

                                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.
                                This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
                                [My articles]

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                                • D Dalek Dave

                                  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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                                  smcnulty2000
                                  wrote on last edited by
                                  #38

                                  June 7. First day of Vestalia.

                                  _____________________________ Will work for ... BRAINS!!! BRAINS!!!!

                                  1 Reply Last reply
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                                  • D Dalek Dave

                                    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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                                    Johann Gerell
                                    wrote on last edited by
                                    #39

                                    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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                                    • C Christian Graus

                                      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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                                      kduffingb
                                      wrote on last edited by
                                      #40

                                      17 Feb also :laugh: :laugh:

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                                      • O Oakman

                                        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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                                        JDL EPM
                                        wrote on last edited by
                                        #41

                                        Oakman wrote:

                                        Jun 10

                                        Does it count if this is my wife's birthday?

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                                        • D Dalek Dave

                                          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

                                          M Offline
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                                          Mustafa Ismail Mustafa
                                          wrote on last edited by
                                          #42

                                          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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