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Error
Probability (EP) also known as Human
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Error
Probability (HEP):
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EP = (#
of errors)/(total # of opportunities for the
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error)
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value
between 0 and 1
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gives
rate of errors
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this is
a probabilistic value
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it does
not indicate if an error will or will not occur
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just the
likelihood
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does
not indicate type or cause of error
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