2 Replies Latest reply on Nov 2, 2015 5:21 AM by Canon Pattillo

    Incorrect Boxplot Quartiles

    Canon Pattillo

      Hi All,

      I'm sure this is user error but I cannot calculate the correct first and third quartiles for a 12 line data set.

       

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      Tableau calculates the median at 190, correct. But it is incorrectly calculating the first and third quartiles; 172 where it should be 171 and 203.75 where it should be 206.5. What am I doing wrong?? Thank you.