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Expected Value and Variance Question

  1. Jan 20, 2013 #1
    Does μx mean the same thing as E[X]? Also, does σ2x mean the same thing as Var X?
  2. jcsd
  3. Jan 21, 2013 #2


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    Those would be reasonable notations for E[X], Var(X). I wouldn't say it's sufficiently standard to answer more confidently.
  4. Jan 21, 2013 #3
    Okay Thank You!!
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