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Computing probabilities from contingency table



Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 23, 2019 at 00:00UTC (8:00pm US/Eastern)Maximal ratio of probabilitiesMultiple conditional probabilitiesExpress multiple conditional probability in terms of single conditional probabilitiesMultiplication of conditional probabilitiesCalculating conditional lottery probabilities - and example from DeGroot.Computing absolute distribution from conditioned probabilityComputing Conditional Probabilities of Brownian Motion with Strict InequalitiesHow do you find the conditional expectation from contingency tableDetermine conditional probabilities from distributionsComputing probabilities of standard Brownian motion










0












$begingroup$


A company has collected the given data in this contingency table on employees.
contingency table



If an employee is selected from the this company, find the given probablities: I am showing them not simplified and just wanting to know if I am adding/subtracting correct amounts.



a) P(female and college grad) I think is 190/388 or is it (193/400)(388/400)



b) P(female OR college grad)

I think this is P(female) + P(college grad)- P(female and college grad) so
193/400 + 388/400 - whichever is correct in a).



c) P(female given college grad) I think is 190/388



d) P(college grad given female) I think is 190/193



Hoping someone can confirm which way to do a) and if I am doing the other 3 correctly. Thanks!










share|cite|improve this question









$endgroup$
















    0












    $begingroup$


    A company has collected the given data in this contingency table on employees.
    contingency table



    If an employee is selected from the this company, find the given probablities: I am showing them not simplified and just wanting to know if I am adding/subtracting correct amounts.



    a) P(female and college grad) I think is 190/388 or is it (193/400)(388/400)



    b) P(female OR college grad)

    I think this is P(female) + P(college grad)- P(female and college grad) so
    193/400 + 388/400 - whichever is correct in a).



    c) P(female given college grad) I think is 190/388



    d) P(college grad given female) I think is 190/193



    Hoping someone can confirm which way to do a) and if I am doing the other 3 correctly. Thanks!










    share|cite|improve this question









    $endgroup$














      0












      0








      0





      $begingroup$


      A company has collected the given data in this contingency table on employees.
      contingency table



      If an employee is selected from the this company, find the given probablities: I am showing them not simplified and just wanting to know if I am adding/subtracting correct amounts.



      a) P(female and college grad) I think is 190/388 or is it (193/400)(388/400)



      b) P(female OR college grad)

      I think this is P(female) + P(college grad)- P(female and college grad) so
      193/400 + 388/400 - whichever is correct in a).



      c) P(female given college grad) I think is 190/388



      d) P(college grad given female) I think is 190/193



      Hoping someone can confirm which way to do a) and if I am doing the other 3 correctly. Thanks!










      share|cite|improve this question









      $endgroup$




      A company has collected the given data in this contingency table on employees.
      contingency table



      If an employee is selected from the this company, find the given probablities: I am showing them not simplified and just wanting to know if I am adding/subtracting correct amounts.



      a) P(female and college grad) I think is 190/388 or is it (193/400)(388/400)



      b) P(female OR college grad)

      I think this is P(female) + P(college grad)- P(female and college grad) so
      193/400 + 388/400 - whichever is correct in a).



      c) P(female given college grad) I think is 190/388



      d) P(college grad given female) I think is 190/193



      Hoping someone can confirm which way to do a) and if I am doing the other 3 correctly. Thanks!







      conditional-probability






      share|cite|improve this question













      share|cite|improve this question











      share|cite|improve this question




      share|cite|improve this question










      asked Apr 1 at 19:21









      Julie JJulie J

      154




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