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How To Calculate Range of Values Of A Random Variable (Binomially Distributed)

  1. Aug 20, 2010 #1
    1 Calculate the expected value of variable x (or E(x)) (number of trials * probability of success)
    2 Calculate the variance (expected value * probability of a failure)

    Take everything to the right of the decimal in the variance off. Then the range of future values is E(x) plus/minus the variance.
  2. jcsd
  3. Aug 20, 2010 #2
    The probability of error will always be below .5.
  4. Aug 20, 2010 #3


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    Are you asking whether this is true? On what basis do you make these statements?
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