Product of two Beta distributed random variables












3














I have two Beta distributed random variables :



$X_1=B(alpha_1, beta_1)$



$X_2=B(alpha_2, beta_2)$



What can we say about $Y=X_1.X_2$? Is this also a Beta distributed random variable?










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  • 1




    See this.
    – Clement C.
    Dec 18 '14 at 14:53






  • 1




    A general solution is derived at math.stackexchange.com/questions/1201321/…
    – wolfies
    Sep 23 '17 at 8:15












  • Do not forget to state that $X_1$ and $X_2$ are independent!
    – Jeppe Stig Nielsen
    Dec 6 '18 at 12:31
















3














I have two Beta distributed random variables :



$X_1=B(alpha_1, beta_1)$



$X_2=B(alpha_2, beta_2)$



What can we say about $Y=X_1.X_2$? Is this also a Beta distributed random variable?










share|cite|improve this question


















  • 1




    See this.
    – Clement C.
    Dec 18 '14 at 14:53






  • 1




    A general solution is derived at math.stackexchange.com/questions/1201321/…
    – wolfies
    Sep 23 '17 at 8:15












  • Do not forget to state that $X_1$ and $X_2$ are independent!
    – Jeppe Stig Nielsen
    Dec 6 '18 at 12:31














3












3








3


3





I have two Beta distributed random variables :



$X_1=B(alpha_1, beta_1)$



$X_2=B(alpha_2, beta_2)$



What can we say about $Y=X_1.X_2$? Is this also a Beta distributed random variable?










share|cite|improve this question













I have two Beta distributed random variables :



$X_1=B(alpha_1, beta_1)$



$X_2=B(alpha_2, beta_2)$



What can we say about $Y=X_1.X_2$? Is this also a Beta distributed random variable?







probability-distributions beta-function






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share|cite|improve this question











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asked Dec 18 '14 at 14:48









GuillaumeThomas

16816




16816








  • 1




    See this.
    – Clement C.
    Dec 18 '14 at 14:53






  • 1




    A general solution is derived at math.stackexchange.com/questions/1201321/…
    – wolfies
    Sep 23 '17 at 8:15












  • Do not forget to state that $X_1$ and $X_2$ are independent!
    – Jeppe Stig Nielsen
    Dec 6 '18 at 12:31














  • 1




    See this.
    – Clement C.
    Dec 18 '14 at 14:53






  • 1




    A general solution is derived at math.stackexchange.com/questions/1201321/…
    – wolfies
    Sep 23 '17 at 8:15












  • Do not forget to state that $X_1$ and $X_2$ are independent!
    – Jeppe Stig Nielsen
    Dec 6 '18 at 12:31








1




1




See this.
– Clement C.
Dec 18 '14 at 14:53




See this.
– Clement C.
Dec 18 '14 at 14:53




1




1




A general solution is derived at math.stackexchange.com/questions/1201321/…
– wolfies
Sep 23 '17 at 8:15






A general solution is derived at math.stackexchange.com/questions/1201321/…
– wolfies
Sep 23 '17 at 8:15














Do not forget to state that $X_1$ and $X_2$ are independent!
– Jeppe Stig Nielsen
Dec 6 '18 at 12:31




Do not forget to state that $X_1$ and $X_2$ are independent!
– Jeppe Stig Nielsen
Dec 6 '18 at 12:31










2 Answers
2






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oldest

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4














There are several paper for this problem. See for example:




  • On the Distribution of the Product of Independent Beta Random Variables
    – Applications

  • Products of Beta distributed random variables

  • BETA PRODUCTS WITH COMPLEX PARAMETERS






share|cite|improve this answer





























    3














    You can have a look at the following paper http://www.dm.fct.unl.pt/sites/www.dm.fct.unl.pt/files/preprints/2012/7_12.pdf which tackles your problem






    share|cite|improve this answer





















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      2 Answers
      2






      active

      oldest

      votes








      2 Answers
      2






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      4














      There are several paper for this problem. See for example:




      • On the Distribution of the Product of Independent Beta Random Variables
        – Applications

      • Products of Beta distributed random variables

      • BETA PRODUCTS WITH COMPLEX PARAMETERS






      share|cite|improve this answer


























        4














        There are several paper for this problem. See for example:




        • On the Distribution of the Product of Independent Beta Random Variables
          – Applications

        • Products of Beta distributed random variables

        • BETA PRODUCTS WITH COMPLEX PARAMETERS






        share|cite|improve this answer
























          4












          4








          4






          There are several paper for this problem. See for example:




          • On the Distribution of the Product of Independent Beta Random Variables
            – Applications

          • Products of Beta distributed random variables

          • BETA PRODUCTS WITH COMPLEX PARAMETERS






          share|cite|improve this answer












          There are several paper for this problem. See for example:




          • On the Distribution of the Product of Independent Beta Random Variables
            – Applications

          • Products of Beta distributed random variables

          • BETA PRODUCTS WITH COMPLEX PARAMETERS







          share|cite|improve this answer












          share|cite|improve this answer



          share|cite|improve this answer










          answered Dec 18 '14 at 15:21









          alexjo

          12.2k1329




          12.2k1329























              3














              You can have a look at the following paper http://www.dm.fct.unl.pt/sites/www.dm.fct.unl.pt/files/preprints/2012/7_12.pdf which tackles your problem






              share|cite|improve this answer


























                3














                You can have a look at the following paper http://www.dm.fct.unl.pt/sites/www.dm.fct.unl.pt/files/preprints/2012/7_12.pdf which tackles your problem






                share|cite|improve this answer
























                  3












                  3








                  3






                  You can have a look at the following paper http://www.dm.fct.unl.pt/sites/www.dm.fct.unl.pt/files/preprints/2012/7_12.pdf which tackles your problem






                  share|cite|improve this answer












                  You can have a look at the following paper http://www.dm.fct.unl.pt/sites/www.dm.fct.unl.pt/files/preprints/2012/7_12.pdf which tackles your problem







                  share|cite|improve this answer












                  share|cite|improve this answer



                  share|cite|improve this answer










                  answered Dec 18 '14 at 14:56









                  Jean-Robert

                  1563




                  1563






























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