Ok stupid math question

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  • Dirty F
    Too lazy to set a custom title
    • Jul 2001
    • 59204

    #1

    Ok stupid math question

    Lets say you have 4 numbers and you have to pick 1, your chance is 1 in 4 you pick that number. now lets say you can pick a number again, once again you have 1 / 4 chance you get the right number but now im wondering, those 2 chances you had, can you say you had 50% chance you picked that number or not? or is it still 2 x 1/4 chance? Or is that the same?

    Yeah yeah, i failed miserably at math classes.
  • thetgpmaster
    So Fucking Banned
    • Feb 2004
    • 4307

    #2
    50% if numbers dont changes..
    if the numbers changes its 25% ( 1/4 )

    hope this helps

    Comment

    • Dirty F
      Too lazy to set a custom title
      • Jul 2001
      • 59204

      #3
      Originally posted by thetgpmaster
      50% if numbers dont changes..
      if the numbers changes its 25% ( 1/4 )

      hope this helps
      Thats what i thought yeah. Sometimes when you think too long about something you cannot think clear about it anymore.

      Comment

      • Mike-BP
        Confirmed User
        • Mar 2003
        • 1270

        #4
        2 x 1/4 = 2/4 = 1/2 = 50%
        Thanks to: ISPrime.com - best hosting company without downtime

        Comment

        • Basic_man
          Programming King Pin
          • Oct 2003
          • 27360

          #5
          Originally posted by thetgpmaster
          50% if numbers dont changes..
          if the numbers changes its 25% ( 1/4 )

          hope this helps
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          • Dirty F
            Too lazy to set a custom title
            • Jul 2001
            • 59204

            #6
            Originally posted by Mike-BP
            2 x 1/4 = 2/4 = 1/2 = 50%
            Yup, thats obvious.

            Ok, thanks.

            Comment

            • Dirty F
              Too lazy to set a custom title
              • Jul 2001
              • 59204

              #7
              But lets say you have 4 straws, 3 short ones and 1 long one. Without looking you have to pick the longest straw. Thats 1/4 chance but the next time you still have a 1 in 4 chance. The 3rd time as well. Its not like that after 4 times you will pick the longest straw for sure.

              Comment

              • thetgpmaster
                So Fucking Banned
                • Feb 2004
                • 4307

                #8
                Originally posted by Battuss


                Thats what i thought yeah. Sometimes when you think too long about something you cannot think clear about it anymore.
                heheh yeah i know this thing... some times it happend to me to...lol

                Comment

                • mule
                  Confirmed User
                  • Jan 2002
                  • 6085

                  #9
                  Originally posted by Battuss
                  But lets say you have 4 straws, 3 short ones and 1 long one. Without looking you have to pick the longest straw. Thats 1/4 chance but the next time you still have a 1 in 4 chance. The 3rd time as well. Its not like that after 4 times you will pick the longest straw for sure.
                  Yep, and that's why the guys who play red or black in roulette, and double up every time they lose, will allways lose big in the end. Same odds every time, and 2% in favor of the table.
                  Converting like a mofo

                  Comment

                  • FuqALot
                    Confirmed User
                    • Dec 2001
                    • 3817

                    #10
                    If this is somehow related to the casino then trust me, if roulette ever hits red 4 times, then bet that $100 on black. It ain't never going to hit red 5 times.

                    Comment

                    • hova
                      Traffillionaire
                      • Jan 2002
                      • 22430

                      #11
                      Originally posted by FuqALot
                      If this is somehow related to the casino then trust me, if roulette ever hits red 4 times, then bet that $100 on black. It ain't never going to hit red 5 times.
                      Try to proof that with some math
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                      Comment

                      • mule
                        Confirmed User
                        • Jan 2002
                        • 6085

                        #12
                        Originally posted by FuqALot
                        If this is somehow related to the casino then trust me, if roulette ever hits red 4 times, then bet that $100 on black. It ain't never going to hit red 5 times.
                        LOL
                        I think the official record still stands at 38 reds in a row, at Baden-baden I think it was
                        Converting like a mofo

                        Comment

                        • Dirty F
                          Too lazy to set a custom title
                          • Jul 2001
                          • 59204

                          #13
                          Originally posted by FuqALot
                          If this is somehow related to the casino then trust me, if roulette ever hits red 4 times, then bet that $100 on black. It ain't never going to hit red 5 times.
                          No no, its not related to anything. I was just wondering about it without a reason really.

                          Comment

                          • jennym
                            Confirmed User
                            • May 2003
                            • 1622

                            #14
                            Actually, I would think the first time you guess, you have a 1:4 chance of getting it right. That then leaves 3 numbers for the second guess which gives you 1:3 odds. So, your total odds should be 7:12, which is slightly more than 1:2.

                            But, I don't know.....

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