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

moonman239
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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.
 
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The probability of error will always be below .5.
 
Are you asking whether this is true? On what basis do you make these statements?
 

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