Evidence-based medicine theory can be applied to frequent flying

A professor has developed a revolutionary theory of Evidence-Based Flying, based on the well-established concept of Evidence-Based Medicine. His theory shows how number needed to fly before a delay (NNF) and number needed to upgrade (NNU) can be combined with other variables to inform wise flying decisions. Initial data shows that departure delays ranged from 20-30%, with NNF ranging from 10 to 31 flights when compared with the top performing airline.

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