Meaning of success rate












0












$begingroup$


What is the meaning of success rate?
ex: success rate = 4%



Someone told me it means doing something 100 times consecutively and that there would be at least 4 times it succeeds.



But I think its not true. As far as I understand, 4% success rate of doing something is like when you do it, a perfectly balanced dice with 100 sides is cast, there are 4 green sides and 96 red sides. If you get a green side, you succeed otherwise you fail. So theoretically, you can fail 100 times consecutively or even infinitely because the success rate of a try A exists independently from other tries.



Which definition is correct, 1 or 2 or neither?



If 1 is correct then what do you call 2?



If 2 is correct how do you even calculate the success rate of doing anything? Since there's no way to know how many green/ red sides there are.



The reason Im asking this question is because as a computer science student, I often find myself implementing the success rate in my code using the definition(2). for ex:



randomly take a in (0..9)
if ( a <= 3) succeed
else fail










share|cite|improve this question











$endgroup$

















    0












    $begingroup$


    What is the meaning of success rate?
    ex: success rate = 4%



    Someone told me it means doing something 100 times consecutively and that there would be at least 4 times it succeeds.



    But I think its not true. As far as I understand, 4% success rate of doing something is like when you do it, a perfectly balanced dice with 100 sides is cast, there are 4 green sides and 96 red sides. If you get a green side, you succeed otherwise you fail. So theoretically, you can fail 100 times consecutively or even infinitely because the success rate of a try A exists independently from other tries.



    Which definition is correct, 1 or 2 or neither?



    If 1 is correct then what do you call 2?



    If 2 is correct how do you even calculate the success rate of doing anything? Since there's no way to know how many green/ red sides there are.



    The reason Im asking this question is because as a computer science student, I often find myself implementing the success rate in my code using the definition(2). for ex:



    randomly take a in (0..9)
    if ( a <= 3) succeed
    else fail










    share|cite|improve this question











    $endgroup$















      0












      0








      0





      $begingroup$


      What is the meaning of success rate?
      ex: success rate = 4%



      Someone told me it means doing something 100 times consecutively and that there would be at least 4 times it succeeds.



      But I think its not true. As far as I understand, 4% success rate of doing something is like when you do it, a perfectly balanced dice with 100 sides is cast, there are 4 green sides and 96 red sides. If you get a green side, you succeed otherwise you fail. So theoretically, you can fail 100 times consecutively or even infinitely because the success rate of a try A exists independently from other tries.



      Which definition is correct, 1 or 2 or neither?



      If 1 is correct then what do you call 2?



      If 2 is correct how do you even calculate the success rate of doing anything? Since there's no way to know how many green/ red sides there are.



      The reason Im asking this question is because as a computer science student, I often find myself implementing the success rate in my code using the definition(2). for ex:



      randomly take a in (0..9)
      if ( a <= 3) succeed
      else fail










      share|cite|improve this question











      $endgroup$




      What is the meaning of success rate?
      ex: success rate = 4%



      Someone told me it means doing something 100 times consecutively and that there would be at least 4 times it succeeds.



      But I think its not true. As far as I understand, 4% success rate of doing something is like when you do it, a perfectly balanced dice with 100 sides is cast, there are 4 green sides and 96 red sides. If you get a green side, you succeed otherwise you fail. So theoretically, you can fail 100 times consecutively or even infinitely because the success rate of a try A exists independently from other tries.



      Which definition is correct, 1 or 2 or neither?



      If 1 is correct then what do you call 2?



      If 2 is correct how do you even calculate the success rate of doing anything? Since there's no way to know how many green/ red sides there are.



      The reason Im asking this question is because as a computer science student, I often find myself implementing the success rate in my code using the definition(2). for ex:



      randomly take a in (0..9)
      if ( a <= 3) succeed
      else fail







      probability percentages






      share|cite|improve this question















      share|cite|improve this question













      share|cite|improve this question




      share|cite|improve this question








      edited Jan 16 at 23:06







      Stewie

















      asked Jan 16 at 22:12









      StewieStewie

      32




      32






















          2 Answers
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          0












          $begingroup$

          Success rate is, first of all, a rate (of success). So naturally its $$ frac{#{text{succesful events}}}{#{text{successful events} + text{unsuccessful events}}} ~~(= 0.04 = 4%)$$



          here $#$ denotes a number (count) of events.






          share|cite|improve this answer









          $endgroup$





















            0












            $begingroup$

            If you run the experiment 100 times the 4 times would be the green side ! This is what success rate means.



            Yes you can fail 100 consecutively times, but if you run the experiment infinitely you will get an average of 4 percent. You should think of the percentage as a normalized value.






            share|cite|improve this answer











            $endgroup$













            • $begingroup$
              The success rate of each time I try the experiment exists independently from other tries. So doesnt 4 success out of 100 tries with 4% success rate mean 0.04^4 instead?
              $endgroup$
              – Stewie
              Jan 16 at 22:21













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            2 Answers
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            2 Answers
            2






            active

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            active

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            active

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            0












            $begingroup$

            Success rate is, first of all, a rate (of success). So naturally its $$ frac{#{text{succesful events}}}{#{text{successful events} + text{unsuccessful events}}} ~~(= 0.04 = 4%)$$



            here $#$ denotes a number (count) of events.






            share|cite|improve this answer









            $endgroup$


















              0












              $begingroup$

              Success rate is, first of all, a rate (of success). So naturally its $$ frac{#{text{succesful events}}}{#{text{successful events} + text{unsuccessful events}}} ~~(= 0.04 = 4%)$$



              here $#$ denotes a number (count) of events.






              share|cite|improve this answer









              $endgroup$
















                0












                0








                0





                $begingroup$

                Success rate is, first of all, a rate (of success). So naturally its $$ frac{#{text{succesful events}}}{#{text{successful events} + text{unsuccessful events}}} ~~(= 0.04 = 4%)$$



                here $#$ denotes a number (count) of events.






                share|cite|improve this answer









                $endgroup$



                Success rate is, first of all, a rate (of success). So naturally its $$ frac{#{text{succesful events}}}{#{text{successful events} + text{unsuccessful events}}} ~~(= 0.04 = 4%)$$



                here $#$ denotes a number (count) of events.







                share|cite|improve this answer












                share|cite|improve this answer



                share|cite|improve this answer










                answered Jan 16 at 22:39









                sjoksjok

                353




                353























                    0












                    $begingroup$

                    If you run the experiment 100 times the 4 times would be the green side ! This is what success rate means.



                    Yes you can fail 100 consecutively times, but if you run the experiment infinitely you will get an average of 4 percent. You should think of the percentage as a normalized value.






                    share|cite|improve this answer











                    $endgroup$













                    • $begingroup$
                      The success rate of each time I try the experiment exists independently from other tries. So doesnt 4 success out of 100 tries with 4% success rate mean 0.04^4 instead?
                      $endgroup$
                      – Stewie
                      Jan 16 at 22:21


















                    0












                    $begingroup$

                    If you run the experiment 100 times the 4 times would be the green side ! This is what success rate means.



                    Yes you can fail 100 consecutively times, but if you run the experiment infinitely you will get an average of 4 percent. You should think of the percentage as a normalized value.






                    share|cite|improve this answer











                    $endgroup$













                    • $begingroup$
                      The success rate of each time I try the experiment exists independently from other tries. So doesnt 4 success out of 100 tries with 4% success rate mean 0.04^4 instead?
                      $endgroup$
                      – Stewie
                      Jan 16 at 22:21
















                    0












                    0








                    0





                    $begingroup$

                    If you run the experiment 100 times the 4 times would be the green side ! This is what success rate means.



                    Yes you can fail 100 consecutively times, but if you run the experiment infinitely you will get an average of 4 percent. You should think of the percentage as a normalized value.






                    share|cite|improve this answer











                    $endgroup$



                    If you run the experiment 100 times the 4 times would be the green side ! This is what success rate means.



                    Yes you can fail 100 consecutively times, but if you run the experiment infinitely you will get an average of 4 percent. You should think of the percentage as a normalized value.







                    share|cite|improve this answer














                    share|cite|improve this answer



                    share|cite|improve this answer








                    edited Jan 16 at 23:11

























                    answered Jan 16 at 22:16









                    ItsYouItsYou

                    63




                    63












                    • $begingroup$
                      The success rate of each time I try the experiment exists independently from other tries. So doesnt 4 success out of 100 tries with 4% success rate mean 0.04^4 instead?
                      $endgroup$
                      – Stewie
                      Jan 16 at 22:21




















                    • $begingroup$
                      The success rate of each time I try the experiment exists independently from other tries. So doesnt 4 success out of 100 tries with 4% success rate mean 0.04^4 instead?
                      $endgroup$
                      – Stewie
                      Jan 16 at 22:21


















                    $begingroup$
                    The success rate of each time I try the experiment exists independently from other tries. So doesnt 4 success out of 100 tries with 4% success rate mean 0.04^4 instead?
                    $endgroup$
                    – Stewie
                    Jan 16 at 22:21






                    $begingroup$
                    The success rate of each time I try the experiment exists independently from other tries. So doesnt 4 success out of 100 tries with 4% success rate mean 0.04^4 instead?
                    $endgroup$
                    – Stewie
                    Jan 16 at 22:21




















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