“three repairman per twenty machines are much more economical than one repairman per six machines.”

— William Feller

Source: An Introduction To Probability Theory And Its Applications (Third Edition), Chapter XVII, The Simplest Time Dependent Stochastic Processes, p. 466.

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William Feller 30

Croatian-American mathematician 1906–1970

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“three repairman per twenty machines are much more economical than one repairman per six machines.”

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