John Tukey
John Tukey.jpg
John Wilder Tukey
Born(1915-06-16)June 16, 1915
DiedJuly 26, 2000(2000-07-26) (aged 85)
Alma mater
Known for
Scientific career
ThesisOn Denumerability in Topology[1]
Doctoral advisorSolomon Lefschetz[1]
Doctoral students

John Wilder Tukey (/ˈtki/; June 16, 1915 – July 26, 2000) was an American mathematician and statistician, best known for the development of the fast Fourier Transform (FFT) algorithm and box plot.[2] The Tukey range test, the Tukey lambda distribution, the Tukey test of additivity, and the Teichmüller–Tukey lemma all bear his name. He is also credited with coining the term 'bit' and the first published use of the word 'software'.


Tukey was born in New Bedford, Massachusetts in 1915, to a Latin teacher father and a private tutor. He was mainly taught by his mother and attended regular classes only for certain subjects like French.[3] Tukey obtained a BA in 1936 and MSc in 1937 in chemistry, from Brown University, before moving to Princeton University, where in 1939 he received a PhD in mathematics after completing a doctoral dissertation titled "On denumerability in topology".[4][5][6]

During World War II, Tukey worked at the Fire Control Research Office and collaborated with Samuel Wilks and William Cochran. He is claimed to have helped design the U-2 spy plane. After the war, he returned to Princeton, dividing his time between the university and AT&T Bell Laboratories. In 1962, Tukey was elected to the American Philosophical Society.[7] He became a full professor at 35 and founding chairman of the Princeton statistics department in 1965.[3]

Among many contributions to civil society, Tukey served on a committee of the American Statistical Association that produced a report critiquing the statistical methodology of the Kinsey Report, Statistical Problems of the Kinsey Report on Sexual Behavior in the Human Male, which summarized "A random selection of three people would have been better than a group of 300 chosen by Mr. Kinsey".

From 1960 to 1980, Tukey helped design the NBC television network polls used to predict and analyze elections. He was also a consultant to the Educational Testing Service, the Xerox Corporation, and Merck & Company.

He was awarded the National Medal of Science by President Nixon in 1973.[3] He was awarded the IEEE Medal of Honor in 1982 "For his contributions to the spectral analysis of random processes and the fast Fourier transform (FFT) algorithm".

Tukey retired in 1985. He died in New Brunswick, New Jersey, on July 26, 2000.

Scientific contributions

Early in his career Tukey worked on developing statistical methods for computers at Bell Labs where he invented the term "bit" in 1947.[8][9][10]

His statistical interests were many and varied. He is particularly remembered for his development with James Cooley of the Cooley–Tukey FFT algorithm. In 1970, he contributed significantly to what is today known as the jackknife—also termed Quenouille–Tukey jackknife. He introduced the box plot in his 1977 book, "Exploratory Data Analysis".

Tukey's range test, the Tukey lambda distribution, Tukey's test of additivity, Tukey's lemma, and the Tukey window all bear his name. He is also the creator of several little-known methods such as the trimean and median-median line, an easier alternative to linear regression.

In 1974, he developed, with Jerome H. Friedman, the concept of the projection pursuit.[11]

Statistical practice

He also contributed to statistical practice and articulated the important distinction between exploratory data analysis and confirmatory data analysis, believing that much statistical methodology placed too great an emphasis on the latter.

Though he believed in the utility of separating the two types of analysis, he pointed out that sometimes, especially in natural science, this was problematic and termed such situations uncomfortable science.

A. D. Gordon offered the following summary of Tukey's principles for statistical practice:[12]

... the usefulness and limitation of mathematical statistics; the importance of having methods of statistical analysis that are robust to violations of the assumptions underlying their use; the need to amass experience of the behaviour of specific methods of analysis in order to provide guidance on their use; the importance of allowing the possibility of data's influencing the choice of method by which they are analysed; the need for statisticians to reject the role of "guardian of proven truth", and to resist attempts to provide once-for-all solutions and tidy over-unifications of the subject; the iterative nature of data analysis; implications of the increasing power, availability, and cheapness of computing facilities; the training of statisticians.

Tukey's lectures were described to be unusual. McCullagh described his lecture given in London in 1977:[12][13]

Tukey ambled to the podium, a great bear of a man dressed in baggy pants and a black knitted shirt. These might once have been a matching pair but the vintage was such that it was hard to tell. ... Carefully and deliberately a list of headings was chalked on the blackboard. The words came too, not many, like overweight parcels, delivered at a slow unfaltering pace. ... When it was complete, Tukey turned to face the audience and the podium ... "Comments, queries, suggestions?" he asked the audience ... As he waited for a response, he clambered onto the podium and manoeuvred until he was sitting cross-legged facing the audience. ... We in the audience sat like spectators at the zoo waiting for the great bear to move or say something. But the great bear appeared to be doing the same thing, and the feeling was not comfortable.

Coining the term bit

While working with John von Neumann on early computer designs, Tukey introduced the word "bit" as a portmanteau of "binary digit".[14] The term "bit" was first used in an article by Claude Shannon in 1948.

See also


The collected works of John W Tukey, edited by William S. Cleveland
About John Tukey


  1. ^ a b John Tukey at the Mathematics Genealogy Project
  2. ^ Sande, Gordon (July 2001). "Obituary: John Wilder Tukey". Physics Today. 54 (7): 80–81. doi:10.1063/1.1397408.
  3. ^ a b c Leonhardt, David (2000-07-28). "John Tukey, 85, Statistician; Coined the Word 'Software'". New York Times. Retrieved 2012-09-24.
  4. ^ "John Tukey". Mathematics Genealogy Project. Retrieved 2022-07-02.
  5. ^ Tukey, John W. (1939). On denumerability in topology.
  6. ^ "John Tukey". IEEE Global History Network. IEEE. Retrieved 2011-07-18.
  7. ^ "APS Member History". Retrieved 2021-01-28.
  8. ^ Shannon, Claude Elwood (July 1948). "A Mathematical Theory of Communication" (PDF). Bell System Technical Journal. 27 (3): 379–423. doi:10.1002/j.1538-7305.1948.tb01338.x. hdl:11858/00-001M-0000-002C-4314-2. Archived from the original (PDF) on 1998-07-15. The choice of a logarithmic base corresponds to the choice of a unit for measuring information. If the base 2 is used the resulting units may be called binary digits, or more briefly bits, a word suggested by J. W. Tukey.
  9. ^ Shannon, Claude Elwood (October 1948). "A Mathematical Theory of Communication". Bell System Technical Journal. 27 (4): 623–666. doi:10.1002/j.1538-7305.1948.tb00917.x. hdl:11858/00-001M-0000-002C-4314-2.
  10. ^ Shannon, Claude Elwood; Weaver, Warren (1949). A Mathematical Theory of Communication (PDF). University of Illinois Press. ISBN 0-252-72548-4. Archived from the original (PDF) on 1998-07-15.
  11. ^ Friedman, Jerome H.; Tukey, John Wilder (September 1974). "A Projection Pursuit Algorithm for Exploratory Data Analysis". IEEE Transactions on Computers. C-23 (9): 881–890. doi:10.1109/T-C.1974.224051. ISSN 0018-9340. OSTI 1442925. S2CID 7997450.
  12. ^ a b "John Tukey - Biography". Maths History. Retrieved 2022-02-18.
  13. ^ P McCullagh, John Wilder Tukey, Biographical Memoirs of Fellows of the Royal Society 49 (2003), 538-559.
  14. ^ "Bit definition by The Linux Information Project (LINFO)".
  15. ^ Talbot, M. (June 2000). Biometrics. 56 (2): 649–650. doi:10.1111/j.0006-341X.2000.00647.x. JSTOR 2677019.((cite journal)): CS1 maint: untitled periodical (link)
  16. ^ Cooper, Mark (July–August 2000). Crop Science. 40 (4): 1184. doi:10.2135/cropsci2000.0015br.((cite journal)): CS1 maint: untitled periodical (link)
  17. ^ Heckler, Charles E. (February 2001). Technometrics. 43 (1): 97–98. doi:10.1198/tech.2001.s547. JSTOR 1270862. S2CID 26430218.((cite journal)): CS1 maint: untitled periodical (link)
  18. ^ Broadfoot, L. (June 2001). The Journal of Agricultural Science. 136 (4): 471–475. doi:10.1017/s002185960124893x. S2CID 86230606.((cite journal)): CS1 maint: untitled periodical (link)