Edward Charles Dixon Molina (December 13, 1877 - April 19, 1964) was an American engineer, known for his contributions to teletraffic engineering

Teletraffic engineering

Telecommunications traffic engineering, teletraffic engineering, or traffic engineering is the application of traffic engineering theory to telecommunications...

.
He was autodidact in mathematics

Mathematics

Mathematics is the study of quantity, space, structure, and change. Mathematicians seek out patterns and formulate new conjectures. Mathematicians resolve the truth or falsity of conjectures by mathematical proofs, which are arguments sufficient to convince other mathematicians of their validity...

 and entered the AT&T

AT&T

AT&T Inc. is an American multinational telecommunications corporation headquartered in Whitacre Tower, Dallas, Texas, United States. It is the largest provider of mobile telephony and fixed telephony in the United States, and is also a provider of broadband and subscription television services...

 research department, later Bell Labs

Bell Labs

Bell Laboratories is the research and development subsidiary of the French-owned Alcatel-Lucent and previously of the American Telephone & Telegraph Company , half-owned through its Western Electric manufacturing subsidiary.Bell Laboratories operates its...

 (1901). His invention of relay translators (1906) resulted
in the panel dial systems. Molina pioneered the use of throwdowns, which in essence were Monte Carlo simulations of telephone traffic to find optimal capacity assignments for trunk lines to central offices. He was awarded the Franklin Institute

Franklin Institute

The Franklin Institute is a museum in Philadelphia, Pennsylvania, and one of the oldest centers of science education and development in the United States, dating to 1824. The Institute also houses the Benjamin Franklin National Memorial.-History:On February 5, 1824, Samuel Vaughn Merrick and...

's Elliott Cresson Medal

Elliott Cresson Medal

The Elliott Cresson Medal, also known as the Elliott Cresson Gold Medal, was the highest award given by the Franklin Institute. The award was established by Elliott Cresson, life member of the Franklin Institute, with $1,000 granted in 1848...

 in 1952.

Publications

• Application of the Theory of Probability to Telephone Trunking, Bell Labs Technical Journal
  Bell Labs Technical Journal
  The Bell Labs Technical Journal is the in-house scientific journal for scientists of Bell Labs/Alcatel-Lucent. It is published quarterly by John Wiley & Sons. The editor is Alice E...
  
  , No 6, pp. 461-495, 1927
• Bayes' Theorem: An Expository Presentation, Annals of Mathematical Statistics
  Annals of Mathematical Statistics
  The Annals of Mathematical Statistics was a peer-reviewed statistics journal published by the Institute of Mathematical Statistics from 1930 to 1972. It was superseded by the Annals of Statistics and the Annals of Probability.-External links:*...
  
  , 2(1):23-37, 1931
• An expansion for Laplacian integrals in terms of incomplete gamma functions, and some applications (1932)
• Poisson's exponential Binominal limit (D. Van Nostrand, Co.Inc., 1943). Book.
• Some Fundamental Curves for the Solution of Sampling Problems (Annals of Mathematical Statistics
  Annals of Mathematical Statistics
  The Annals of Mathematical Statistics was a peer-reviewed statistics journal published by the Institute of Mathematical Statistics from 1930 to 1972. It was superseded by the Annals of Statistics and the Annals of Probability.-External links:*...
  
  , 17(3):325-335, 1946
• Some antecedents of quality control
  Quality control
  Quality control, or QC for short, is a process by which entities review the quality of all factors involved in production. This approach places an emphasis on three aspects:...
  
  , in Quality Engineering journal 10(4):693-695, 1998. Notes for a talk given January 17, 1950