Which of these bets do you like?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • JohnGalt2341
    SBR Hall of Famer
    • 12-31-09
    • 9138

    #1
    Which of these bets do you like?
    Let's say that there are 100 different bags of marbles and each bag has exactly 100 marbles in it. Some of the marbles are blue and some are red, there are no other colors. Each bag has exactly 100 marbles in it. I'll tell you exactly how many blue marbles are in each bag and then I will give a price on whether or not you can blindly pull out a blue marble. E.g. If the first bag had 50 blue marbles in it(and 50 red) and the price was -110 for you to blindly pull out a blue marble... would you take that bet?

    Tell me which bets below you would take. The first number is the number of blue marbles in the bag(each bag has 100 marbles in it) the 2nd number is the price you are being offered to blindly pull out a blue marble. Which play(s) below would you take?

    A. 51 -105
    B. 30 +225
    C. 87 -750
    D. 23 +360
    E. 80 -450
    F. 12 +675
    G. 73 -290
    H. 16 +590
    I. 63 -175
    J. 95 -2000
    K. 3 +3800
    L. None of the above
  • pologq
    SBR Posting Legend
    • 10-07-12
    • 19899

    #2
    A and I for me.
    Comment
    • pologq
      SBR Posting Legend
      • 10-07-12
      • 19899

      #3
      and G also
      Comment
      • SEAHAWKHARRY
        BARRELED IN @ SBR!
        • 11-29-07
        • 26068

        #4
        K..
        Comment
        • Tanko
          SBR Hall of Famer
          • 09-19-09
          • 5141

          #5
          Basic method to eval +EV.

          A
          B
          C
          E
          F
          G
          I
          J

          Many of these have barely a positive return.
          The method for eval is:

          If a + line use: 100/(+line+100) = Win %
          If a - line use: - line/(-line -100) = Win %

          Compare win % to odds of blue marble in bag. If win % > odds --> take the bet.

          I've had a few so my math could be off.
          Comment
          • Optional
            Administrator
            • 06-10-10
            • 61298

            #6
            D, H and K
            .
            Comment
            • Tanko
              SBR Hall of Famer
              • 09-19-09
              • 5141

              #7
              S#!T... didn't think it through.
              Win % < odds for blue is a good bet.
              Comment
              • jtoler
                BARRELED IN @ SBR!
                • 12-17-13
                • 30967

                #8
                republican - “ L since I don’t trust communists”
                Comment
                • BuckyOne
                  SBR MVP
                  • 01-02-15
                  • 2728

                  #9
                  Nice going Opti!

                  On $100 units I have

                  D = + 1080
                  H = + 1040
                  K = + 1700

                  Now, I know the math is with you on these dogs but will they bark?
                  You lose if you only get 2 on K
                  win peanuts if D only gets 22
                  lose if H only gets 14

                  My question is would you bet these even with the math behind you as it is very possible to lose real fast with only a little change in the expectancy. I see it as risking too much to win too little.
                  Comment
                  • Optional
                    Administrator
                    • 06-10-10
                    • 61298

                    #10
                    Originally posted by BuckyOne
                    Nice going Opti!

                    On $100 units I have

                    D = + 1080
                    H = + 1040
                    K = + 1700

                    Now, I know the math is with you on these dogs but will they bark?
                    You lose if you only get 2 on K
                    win peanuts if D only gets 22
                    lose if H only gets 14

                    My question is would you bet these even with the math behind you as it is very possible to lose real fast with only a little change in the expectancy. I see it as risking too much to win too little.
                    If someone offered you those sort of odds on an ongoing basis you should bet them hard every single time.

                    As if you could do this forever you have ZERO chance of losing.


                    But in a one off game just because you are getting paid 10% higher odds than you should be it does not mean you are any more likely to win or lose. So need toa ssess the risk against your bankroll still in real world.

                    It's a good thread because in reality you should be thinking about every single bet you make this way. The stumbling block comes in when it is not as clear cut as a bag of colored balls. We can only guess an expected probability in sports. But the people you see around here being called sharps who really are sharp are mostly basing their capping on this starting point.



                    BTW, the easiest way to work this out is to use the SBR Odds Converter tool

                    Just put the % of balls in the "Implied Probability" box and it will tell you the correct odds for that outcome.
                    .
                    Comment
                    • Cuse0323
                      BARRELED IN @ SBR!
                      • 12-09-09
                      • 30169

                      #11
                      Honestly, I’d probably bet all of them. Except the one that is seemingly one of the smarter ones in K. I would hammer J until the wheels fell off. Square as can be over here. As a wise man once said, “there ain’t no juice when you win!”
                      Comment
                      • pologq
                        SBR Posting Legend
                        • 10-07-12
                        • 19899

                        #12
                        A at -105 is fine for me. I would take that with 51% chance of winning.
                        Comment
                        • Cuse0323
                          BARRELED IN @ SBR!
                          • 12-09-09
                          • 30169

                          #13
                          Actually, I would pound C instead of J.
                          Comment
                          • RudyRuetigger
                            SBR Aristocracy
                            • 08-24-10
                            • 65084

                            #14
                            Comment
                            • Chi_archie
                              SBR Aristocracy
                              • 07-22-08
                              • 63165

                              #15
                              i'd max bet them all

                              I have a lifetime experience pulling out blue balls
                              Comment
                              • Otters27
                                BARRELED IN @ SBR!
                                • 07-14-07
                                • 30750

                                #16
                                E for me
                                Comment
                                • Optional
                                  Administrator
                                  • 06-10-10
                                  • 61298

                                  #17
                                  A couple of people asking questions about this privately, so think it's worth explaining a bit more.


                                  Let's say you could have 1000 turns at picking out a marble and were allowed to risk $1 each time as your bet.

                                  You would want to pick the option that gives the most profit in that circumstance?

                                  Not the one that "feels" less risky, like Option A appears to for some people?

                                  Just to compare the two extremes, A and K;

                                  A. 51 -105

                                  51 blue balls out of 100 in bag = 51% chance of selecting a winner.

                                  51% probability converts to odds of -104

                                  He is offering -105 which is 99.12% of reality.

                                  So after 1000 bets you should be sitting at an average result of -$8.76 loss


                                  K. 3 +3800

                                  3 balls = 3%

                                  3% converts to +3233

                                  Offer is +3800 which is 117.53% of reality

                                  So after 1000 bets your average position would be +$175.38 profit



                                  There will be more variance in the result of option K, but the more bets the less that becomes. So if you are betting long term, 1000s of bets per year, would you really feel better (or safer) betting option A type bets as the norm?
                                  .
                                  Comment
                                  • RudyRuetigger
                                    SBR Aristocracy
                                    • 08-24-10
                                    • 65084

                                    #18
                                    Originally posted by RudyRuetigger
                                    or you can you just do it on a great feature provided by sbr
                                    Comment
                                    • Optional
                                      Administrator
                                      • 06-10-10
                                      • 61298

                                      #19
                                      Originally posted by Otters27
                                      E for me
                                      E. 80 -450

                                      80% probability = -400

                                      -450 offer is 87.5% of reality.

                                      You would be down an average of -$125 after 1000 x $1 bets.
                                      .
                                      Comment
                                      • Optional
                                        Administrator
                                        • 06-10-10
                                        • 61298

                                        #20
                                        Originally posted by RudyRuetigger
                                        or you can you just do it on a great feature provided by sbr



                                        Originally posted by Optional
                                        BTW, the easiest way to work this out is to use the SBR Odds Converter tool

                                        Just put the % of balls in the "Implied Probability" box and it will tell you the correct odds for that outcome.
                                        .
                                        Comment
                                        • RudyRuetigger
                                          SBR Aristocracy
                                          • 08-24-10
                                          • 65084

                                          #21
                                          why are people still guessing answers?


                                          when i am drunk i will bet any and all
                                          Comment
                                          • FullStrength
                                            SBR High Roller
                                            • 11-05-14
                                            • 146

                                            #22
                                            D seems to be a good percentage odds bet.
                                            Comment
                                            SBR Contests
                                            Collapse
                                            Top-Rated US Sportsbooks
                                            Collapse
                                            Working...