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Homework Help: Is this an equivalent formula for P(A or B or C) ?

  1. Mar 8, 2007 #1
    I was trying to derive a formula to find [tex]P(A \cup B \cup C)[/tex].

    I came up with the following:

    http://img249.imageshack.us/img249/2154/probabilitymp7.jpg [Broken]

    Is that correct?
     
    Last edited by a moderator: May 2, 2017
  2. jcsd
  3. Mar 8, 2007 #2
    Yes it's correct
     
  4. Mar 8, 2007 #3
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