Calculate percentile rank












0












$begingroup$


I am confused with the concept of percentile rank.
I am in the top 7 of my class, how would I calculate my percentile rank?



Number of students 72
I am 7th rank in my class



Does this mean my percentile rank is 7?






percentile







share|cite|improve this question









$endgroup$

















    0












    $begingroup$


    I am confused with the concept of percentile rank.
    I am in the top 7 of my class, how would I calculate my percentile rank?



    Number of students 72
    I am 7th rank in my class



    Does this mean my percentile rank is 7?






    percentile







    share|cite|improve this question









    $endgroup$















      0












      0








      0





      $begingroup$


      I am confused with the concept of percentile rank.
      I am in the top 7 of my class, how would I calculate my percentile rank?



      Number of students 72
      I am 7th rank in my class



      Does this mean my percentile rank is 7?






      percentile







      share|cite|improve this question









      $endgroup$




      I am confused with the concept of percentile rank.
      I am in the top 7 of my class, how would I calculate my percentile rank?



      Number of students 72
      I am 7th rank in my class



      Does this mean my percentile rank is 7?






      percentile




      percentile






      share|cite|improve this question













      share|cite|improve this question











      share|cite|improve this question




      share|cite|improve this question










      asked Dec 10 '18 at 14:29









      Blue HatBlue Hat

      1




      1






















          2 Answers
          2






          active

          oldest

          votes


















          0












          $begingroup$

          You are in the top $frac7{72}times100% approx 10%$ of your class. Since percentile rank is usually expressed in terms of "how many percent are worse or equal to the score in questions", that means your percentile rank is $90$.






          share|cite|improve this answer









          $endgroup$













          • $begingroup$
            Wouldn't it be more than 10% ?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 14:58










          • $begingroup$
            That's why I said "how many percent are worse or equal to the score in questions", based on en.wikipedia.org/wiki/Percentile_rank. Of course, it would be equally valid to say "top 10%", as I did initially. Generally, the question is what would be expected by a value of "percentile rank 10": top 10% or bottom 10%.
            $endgroup$
            – Ingix
            Dec 10 '18 at 15:03












          • $begingroup$
            I stand in top 10% of the class, so I would want to say that in percentile, how would I do that? -> Overall 90 percentile?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 15:04





















          0












          $begingroup$

          The $7^{th}$ best rank is the $color{blue}{66}^{th}$ data item in the ordered $72$ scores.



          So, this is the $color{blue}{91^{st}}$ percentile as $left lceil 72cdot frac{color{blue}{91}}{100} right rceil = color{blue}{66}$.



          Note, that it is not the $92^{th}$ percentile as $72cdot frac{92}{100} > 66$.






          share|cite|improve this answer









          $endgroup$













          • $begingroup$
            So, If I have to state, I say that my score is overall 91st percentile?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 15:13










          • $begingroup$
            As the percentiles are often reported as 1%-ranges of data although they are "cut-offs", you can safely state that your score belongs to the 91st percentile.
            $endgroup$
            – trancelocation
            Dec 10 '18 at 15:36












          • $begingroup$
            Alright! Thank you for the explanation. To talk, which one, percentile or percentage is a proper way in formal language?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 16:01










          • $begingroup$
            @BlueHat : In the context of comparing performances on tests percentiles are very often used. Also when grades are assigned to scores and if highest scores (like above 90% can hardly be achieved) then often percentiles serve as the cut-offs for different grades like "scores not above the 40th percentile" (roughly: "those students with the lowest 40% of the overall achieved scores") get an F.
            $endgroup$
            – trancelocation
            Dec 10 '18 at 16:46










          • $begingroup$
            so a 91st percentile rank is good right?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 16:47











          Your Answer





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          2 Answers
          2






          active

          oldest

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          2 Answers
          2






          active

          oldest

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          active

          oldest

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          active

          oldest

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          0












          $begingroup$

          You are in the top $frac7{72}times100% approx 10%$ of your class. Since percentile rank is usually expressed in terms of "how many percent are worse or equal to the score in questions", that means your percentile rank is $90$.






          share|cite|improve this answer









          $endgroup$













          • $begingroup$
            Wouldn't it be more than 10% ?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 14:58










          • $begingroup$
            That's why I said "how many percent are worse or equal to the score in questions", based on en.wikipedia.org/wiki/Percentile_rank. Of course, it would be equally valid to say "top 10%", as I did initially. Generally, the question is what would be expected by a value of "percentile rank 10": top 10% or bottom 10%.
            $endgroup$
            – Ingix
            Dec 10 '18 at 15:03












          • $begingroup$
            I stand in top 10% of the class, so I would want to say that in percentile, how would I do that? -> Overall 90 percentile?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 15:04


















          0












          $begingroup$

          You are in the top $frac7{72}times100% approx 10%$ of your class. Since percentile rank is usually expressed in terms of "how many percent are worse or equal to the score in questions", that means your percentile rank is $90$.






          share|cite|improve this answer









          $endgroup$













          • $begingroup$
            Wouldn't it be more than 10% ?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 14:58










          • $begingroup$
            That's why I said "how many percent are worse or equal to the score in questions", based on en.wikipedia.org/wiki/Percentile_rank. Of course, it would be equally valid to say "top 10%", as I did initially. Generally, the question is what would be expected by a value of "percentile rank 10": top 10% or bottom 10%.
            $endgroup$
            – Ingix
            Dec 10 '18 at 15:03












          • $begingroup$
            I stand in top 10% of the class, so I would want to say that in percentile, how would I do that? -> Overall 90 percentile?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 15:04
















          0












          0








          0





          $begingroup$

          You are in the top $frac7{72}times100% approx 10%$ of your class. Since percentile rank is usually expressed in terms of "how many percent are worse or equal to the score in questions", that means your percentile rank is $90$.






          share|cite|improve this answer









          $endgroup$



          You are in the top $frac7{72}times100% approx 10%$ of your class. Since percentile rank is usually expressed in terms of "how many percent are worse or equal to the score in questions", that means your percentile rank is $90$.







          share|cite|improve this answer












          share|cite|improve this answer



          share|cite|improve this answer










          answered Dec 10 '18 at 14:37









          IngixIngix

          3,834146




          3,834146












          • $begingroup$
            Wouldn't it be more than 10% ?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 14:58










          • $begingroup$
            That's why I said "how many percent are worse or equal to the score in questions", based on en.wikipedia.org/wiki/Percentile_rank. Of course, it would be equally valid to say "top 10%", as I did initially. Generally, the question is what would be expected by a value of "percentile rank 10": top 10% or bottom 10%.
            $endgroup$
            – Ingix
            Dec 10 '18 at 15:03












          • $begingroup$
            I stand in top 10% of the class, so I would want to say that in percentile, how would I do that? -> Overall 90 percentile?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 15:04




















          • $begingroup$
            Wouldn't it be more than 10% ?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 14:58










          • $begingroup$
            That's why I said "how many percent are worse or equal to the score in questions", based on en.wikipedia.org/wiki/Percentile_rank. Of course, it would be equally valid to say "top 10%", as I did initially. Generally, the question is what would be expected by a value of "percentile rank 10": top 10% or bottom 10%.
            $endgroup$
            – Ingix
            Dec 10 '18 at 15:03












          • $begingroup$
            I stand in top 10% of the class, so I would want to say that in percentile, how would I do that? -> Overall 90 percentile?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 15:04


















          $begingroup$
          Wouldn't it be more than 10% ?
          $endgroup$
          – Blue Hat
          Dec 10 '18 at 14:58




          $begingroup$
          Wouldn't it be more than 10% ?
          $endgroup$
          – Blue Hat
          Dec 10 '18 at 14:58












          $begingroup$
          That's why I said "how many percent are worse or equal to the score in questions", based on en.wikipedia.org/wiki/Percentile_rank. Of course, it would be equally valid to say "top 10%", as I did initially. Generally, the question is what would be expected by a value of "percentile rank 10": top 10% or bottom 10%.
          $endgroup$
          – Ingix
          Dec 10 '18 at 15:03






          $begingroup$
          That's why I said "how many percent are worse or equal to the score in questions", based on en.wikipedia.org/wiki/Percentile_rank. Of course, it would be equally valid to say "top 10%", as I did initially. Generally, the question is what would be expected by a value of "percentile rank 10": top 10% or bottom 10%.
          $endgroup$
          – Ingix
          Dec 10 '18 at 15:03














          $begingroup$
          I stand in top 10% of the class, so I would want to say that in percentile, how would I do that? -> Overall 90 percentile?
          $endgroup$
          – Blue Hat
          Dec 10 '18 at 15:04






          $begingroup$
          I stand in top 10% of the class, so I would want to say that in percentile, how would I do that? -> Overall 90 percentile?
          $endgroup$
          – Blue Hat
          Dec 10 '18 at 15:04













          0












          $begingroup$

          The $7^{th}$ best rank is the $color{blue}{66}^{th}$ data item in the ordered $72$ scores.



          So, this is the $color{blue}{91^{st}}$ percentile as $left lceil 72cdot frac{color{blue}{91}}{100} right rceil = color{blue}{66}$.



          Note, that it is not the $92^{th}$ percentile as $72cdot frac{92}{100} > 66$.






          share|cite|improve this answer









          $endgroup$













          • $begingroup$
            So, If I have to state, I say that my score is overall 91st percentile?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 15:13










          • $begingroup$
            As the percentiles are often reported as 1%-ranges of data although they are "cut-offs", you can safely state that your score belongs to the 91st percentile.
            $endgroup$
            – trancelocation
            Dec 10 '18 at 15:36












          • $begingroup$
            Alright! Thank you for the explanation. To talk, which one, percentile or percentage is a proper way in formal language?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 16:01










          • $begingroup$
            @BlueHat : In the context of comparing performances on tests percentiles are very often used. Also when grades are assigned to scores and if highest scores (like above 90% can hardly be achieved) then often percentiles serve as the cut-offs for different grades like "scores not above the 40th percentile" (roughly: "those students with the lowest 40% of the overall achieved scores") get an F.
            $endgroup$
            – trancelocation
            Dec 10 '18 at 16:46










          • $begingroup$
            so a 91st percentile rank is good right?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 16:47
















          0












          $begingroup$

          The $7^{th}$ best rank is the $color{blue}{66}^{th}$ data item in the ordered $72$ scores.



          So, this is the $color{blue}{91^{st}}$ percentile as $left lceil 72cdot frac{color{blue}{91}}{100} right rceil = color{blue}{66}$.



          Note, that it is not the $92^{th}$ percentile as $72cdot frac{92}{100} > 66$.






          share|cite|improve this answer









          $endgroup$













          • $begingroup$
            So, If I have to state, I say that my score is overall 91st percentile?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 15:13










          • $begingroup$
            As the percentiles are often reported as 1%-ranges of data although they are "cut-offs", you can safely state that your score belongs to the 91st percentile.
            $endgroup$
            – trancelocation
            Dec 10 '18 at 15:36












          • $begingroup$
            Alright! Thank you for the explanation. To talk, which one, percentile or percentage is a proper way in formal language?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 16:01










          • $begingroup$
            @BlueHat : In the context of comparing performances on tests percentiles are very often used. Also when grades are assigned to scores and if highest scores (like above 90% can hardly be achieved) then often percentiles serve as the cut-offs for different grades like "scores not above the 40th percentile" (roughly: "those students with the lowest 40% of the overall achieved scores") get an F.
            $endgroup$
            – trancelocation
            Dec 10 '18 at 16:46










          • $begingroup$
            so a 91st percentile rank is good right?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 16:47














          0












          0








          0





          $begingroup$

          The $7^{th}$ best rank is the $color{blue}{66}^{th}$ data item in the ordered $72$ scores.



          So, this is the $color{blue}{91^{st}}$ percentile as $left lceil 72cdot frac{color{blue}{91}}{100} right rceil = color{blue}{66}$.



          Note, that it is not the $92^{th}$ percentile as $72cdot frac{92}{100} > 66$.






          share|cite|improve this answer









          $endgroup$



          The $7^{th}$ best rank is the $color{blue}{66}^{th}$ data item in the ordered $72$ scores.



          So, this is the $color{blue}{91^{st}}$ percentile as $left lceil 72cdot frac{color{blue}{91}}{100} right rceil = color{blue}{66}$.



          Note, that it is not the $92^{th}$ percentile as $72cdot frac{92}{100} > 66$.







          share|cite|improve this answer












          share|cite|improve this answer



          share|cite|improve this answer










          answered Dec 10 '18 at 15:07









          trancelocationtrancelocation

          10.9k1723




          10.9k1723












          • $begingroup$
            So, If I have to state, I say that my score is overall 91st percentile?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 15:13










          • $begingroup$
            As the percentiles are often reported as 1%-ranges of data although they are "cut-offs", you can safely state that your score belongs to the 91st percentile.
            $endgroup$
            – trancelocation
            Dec 10 '18 at 15:36












          • $begingroup$
            Alright! Thank you for the explanation. To talk, which one, percentile or percentage is a proper way in formal language?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 16:01










          • $begingroup$
            @BlueHat : In the context of comparing performances on tests percentiles are very often used. Also when grades are assigned to scores and if highest scores (like above 90% can hardly be achieved) then often percentiles serve as the cut-offs for different grades like "scores not above the 40th percentile" (roughly: "those students with the lowest 40% of the overall achieved scores") get an F.
            $endgroup$
            – trancelocation
            Dec 10 '18 at 16:46










          • $begingroup$
            so a 91st percentile rank is good right?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 16:47


















          • $begingroup$
            So, If I have to state, I say that my score is overall 91st percentile?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 15:13










          • $begingroup$
            As the percentiles are often reported as 1%-ranges of data although they are "cut-offs", you can safely state that your score belongs to the 91st percentile.
            $endgroup$
            – trancelocation
            Dec 10 '18 at 15:36












          • $begingroup$
            Alright! Thank you for the explanation. To talk, which one, percentile or percentage is a proper way in formal language?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 16:01










          • $begingroup$
            @BlueHat : In the context of comparing performances on tests percentiles are very often used. Also when grades are assigned to scores and if highest scores (like above 90% can hardly be achieved) then often percentiles serve as the cut-offs for different grades like "scores not above the 40th percentile" (roughly: "those students with the lowest 40% of the overall achieved scores") get an F.
            $endgroup$
            – trancelocation
            Dec 10 '18 at 16:46










          • $begingroup$
            so a 91st percentile rank is good right?
            $endgroup$
            – Blue Hat
            Dec 10 '18 at 16:47
















          $begingroup$
          So, If I have to state, I say that my score is overall 91st percentile?
          $endgroup$
          – Blue Hat
          Dec 10 '18 at 15:13




          $begingroup$
          So, If I have to state, I say that my score is overall 91st percentile?
          $endgroup$
          – Blue Hat
          Dec 10 '18 at 15:13












          $begingroup$
          As the percentiles are often reported as 1%-ranges of data although they are "cut-offs", you can safely state that your score belongs to the 91st percentile.
          $endgroup$
          – trancelocation
          Dec 10 '18 at 15:36






          $begingroup$
          As the percentiles are often reported as 1%-ranges of data although they are "cut-offs", you can safely state that your score belongs to the 91st percentile.
          $endgroup$
          – trancelocation
          Dec 10 '18 at 15:36














          $begingroup$
          Alright! Thank you for the explanation. To talk, which one, percentile or percentage is a proper way in formal language?
          $endgroup$
          – Blue Hat
          Dec 10 '18 at 16:01




          $begingroup$
          Alright! Thank you for the explanation. To talk, which one, percentile or percentage is a proper way in formal language?
          $endgroup$
          – Blue Hat
          Dec 10 '18 at 16:01












          $begingroup$
          @BlueHat : In the context of comparing performances on tests percentiles are very often used. Also when grades are assigned to scores and if highest scores (like above 90% can hardly be achieved) then often percentiles serve as the cut-offs for different grades like "scores not above the 40th percentile" (roughly: "those students with the lowest 40% of the overall achieved scores") get an F.
          $endgroup$
          – trancelocation
          Dec 10 '18 at 16:46




          $begingroup$
          @BlueHat : In the context of comparing performances on tests percentiles are very often used. Also when grades are assigned to scores and if highest scores (like above 90% can hardly be achieved) then often percentiles serve as the cut-offs for different grades like "scores not above the 40th percentile" (roughly: "those students with the lowest 40% of the overall achieved scores") get an F.
          $endgroup$
          – trancelocation
          Dec 10 '18 at 16:46












          $begingroup$
          so a 91st percentile rank is good right?
          $endgroup$
          – Blue Hat
          Dec 10 '18 at 16:47




          $begingroup$
          so a 91st percentile rank is good right?
          $endgroup$
          – Blue Hat
          Dec 10 '18 at 16:47


















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