Source: An Introduction To Probability Theory And Its Applications (Third Edition), Chapter XV, Markov Chains, p. 420.
“[A]dvancement of the human factor in industry… varies so much that unless we use measurement and abide by the results, there is no possibility of repeating the process accurately and efficiently at will, or of predicting and controlling the future conditions that assure that advancement.”
Source: Measurement of the human factor in industry (1917), p. 3.
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Frank Bunker Gilbreth, Sr. 19
American industrial engineer 1868–1924Related quotes
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