A **statistician** is a person who works with theoretical or applied statistics. The profession exists in both the private and public sectors. It is common to combine statistical knowledge with expertise in other subjects, and statisticians may work as employees or as statistical consultants.^{[1]}^{[2]}

According to the United States Bureau of Labor Statistics, as of 2014, 26,970 jobs were classified as *statistician* in the United States. Of these people, approximately 30 percent worked for governments (federal, state, or local).^{[3]} As of May 2016, the median pay for statisticians in the United States was $80,500.^{[3]} Additionally, there is a substantial number of people who use statistics and data analysis in their work but have job titles other than *statistician*,^{[4]} such as actuaries, applied mathematicians, economists, data scientists, data analysts (predictive analytics) financial analysts, psychometricians, sociologists, epidemiologists, and quantitative psychologists.^{[5]} Statisticians are included with the professions in various national and international occupational classifications.^{[6]}^{[7]} According to the BLS, "Overall employment is projected to grow 33% from 2016 to 2026, much faster than average for all occupations. Businesses will need these workers to analyze the increasing volume of digital and electronic data."^{[8]}

In the United States most employment in the field requires either a masters degree in statistics or a related field or a PhD.^{[1]} "Typical work includes collaborating with scientists, providing mathematical modeling, simulations, designing randomized experiments and randomized sampling plans, analyzing experimental or survey results, and forecasting future events (such as sales of a product)."^{[9]}

- ^
^{a}^{b}"O*NET OnLine: 15-2041.00 - Statisticians". Retrieved 29 January 2017. **^**"Royal Statistical Society StatsLife Types of Job". Retrieved 29 January 2017.- ^
^{a}^{b}Bureau of Labor Statistics, US Department of Labor. "Statisticians".*Occupational Outlook Handbook*(2016-17 ed.). Retrieved 30 May 2017. **^**Bureau of Labor Statistics, US Department of Labor. "Statisticians".*Occupational Outlook Handbook*(2010-11 ed.). Archived from the original on 14 May 2011.**^**Bureau of Labor Statistics, US Department of Labor. "Statisticians".*Occupational Outlook Handbook*(2006-07 ed.). Archived from the original on 1 October 2007. Retrieved 3 October 2007.**^**"International Labour Organisation (ILO) International Standard Classification of Occupations (ISCO) ISCO-08 classification structure" (PDF). Retrieved 29 January 2017.**^**"Canadian National Occupational Classification (NOC) 2011 21 - Professional occupations in natural and applied sciences". Retrieved 29 January 2017.**^**"Mathematicians and Statisticians : Occupational Outlook Handbook: : U.S. Bureau of Labor Statistics".*www.bls.gov*. Retrieved 2018-02-28.**^**"IMS Presidential Address: Let us own Data Science, 1 October 2014, News of the Institute of Mathematical Statistics". Retrieved 29 January 2017.

- Statistician entry, Occupational Outlook Handbook, U.S. Bureau of Labor Statistics
- Careers Center, American Statistical Association
- Careers information, Royal Statistical Society (UK)
- Listing of tasks and duties - The International Standard Classification of Occupations (ISCO)
- Listings of nature of work etc - O*NET

Sir Adrian Frederick Melhuish Smith, FRS (born 1946) is a distinguished British statistician and was Principal of Queen Mary, University of London from 1998 to 2008.

From 1977 until 1990, he was Professor of Statistics and Head of Department of Mathematics at the University of Nottingham. He was previously at Imperial College, London, where he was head of the mathematics department. Smith is a former Deputy Vice-Chancellor of the University of London and became Vice-Chancellor of the university on 1 September 2012. He stood down from the role in August 2018 to become the Director of the Alan Turing Institute.Smith is a member of the governing body of the London Business School. He served on the Advisory Council for the Office for National Statistics from 1996–1998, was Statistical Advisor to the Nuclear Waste Inspectorate from 1991–1998 and was advisor on Operational Analysis to the Ministry of Defence from 1982–1987.

He is a former President of the Royal Statistical Society. He was elected a Fellow of the Royal Society in 2001. His FRS citation included "his diverse contributions to Bayesian statistics. His monographs are the most comprehensive available and his work has had a major impact on the development of monitoring tools for clinicians."

In statistical theory, Smith is a proponent of Bayesian statistics and evidence-based practice—a general extension of evidence-based medicine into all areas of public policy. With Antonio Machi, he translated Bruno de Finetti's Theory of Probability into English. He wrote an influential paper in 1990 along with Alan E. Gelfand, which drew attention to the significance of the Gibbs sampler technique for Bayesian numerical integration problems. He was also co-author of the seminal paper on the particle filter (Gordon, Salmond and Smith, 1993). Smith was educated at Selwyn College, Cambridge, and University College London where his PhD supervisor was Dennis Lindley.

In mathematics and statistics education, Smith led the team which produced the Smith Report on secondary mathematics education in the United Kingdom.

In April 2008, Smith was appointed as Director General of Science and Research at the Department for Innovation, Universities and Skills (since merged with another department to form the UK's BIS). He took up his post in September 2008. His annual remuneration for this role is £160,000.Smith was knighted in the 2011 New Year Honours.

American Statistical AssociationThe American Statistical Association (ASA) is the main professional organization for statisticians and related professionals in the United States. It was founded in Boston, Massachusetts on November 27, 1839, and is the second oldest continuously operating professional society in the US (only the Massachusetts Medical Society, founded in 1781, is older). The ASA services statisticians, quantitative scientists, and users of statistics across many academic areas and applications.

Australian Bureau of StatisticsThe Australian Bureau of Statistics (ABS) is the independent statistical agency of the Government of Australia. The ABS provides key statistics on a wide range of economic, population, environmental and social issues, to assist and encourage informed decision making, research and discussion within governments and the community.

Baseball statisticsBaseball statistics play an important role in evaluating the progress of a player or team.

Since the flow of a baseball game has natural breaks to it, and normally players act individually rather than performing in clusters, the sport lends itself to easy record-keeping and statistics. Statistics have been kept for professional baseball since the creation of the National League and American League, now part of Major League Baseball.

Many statistics are also available from outside Major League Baseball, from leagues such as the National Association of Professional Base Ball Players and the Negro Leagues, although the consistency of whether these records were kept, of the standards with respect to which they were calculated, and of their accuracy has varied.

Cricket statisticsCricket is a sport that generates a large number of statistics.

Statistics are recorded for each player during a match, and aggregated over a career. At the professional level, statistics for Test cricket, one-day internationals, and first-class cricket are recorded separately. However, since Test matches are a form of first-class cricket, a player's first-class statistics will include their Test match statistics – but not vice versa. Nowadays records are also maintained for List A and Twenty20 limited over matches. These matches are normally limited over games played domestically at the national level by leading Test nations. Since one-day internationals are a form of List A limited over matches, a player's List A statistics will include their ODI match statistics – but not vice versa.

David Cox (statistician)Sir David Roxbee Cox (born 15 July 1924) is a prominent British statistician.

David Hand (statistician)David John Hand OBE FBA (born 30 June 1950 in Peterborough) is a British statistician. His research interests include multivariate statistics, classification methods, pattern recognition, the computational statistics and the foundations of statistics. He has written books on finance, measurement and computation in statistics, as well as authoring the Very Short Introduction to statistics.

Hand was a professor of statistics at the Open University from 1988 until 1999, when he moved to Imperial College London. He was awarded the Guy Medal in Silver by the Royal Statistical Society in 2002 and served as its president in 2008–2009, then again from in 2010 after Bernard Silverman stood down. He was elected a Fellow of the British Academy in 2003.Hand's book The Improbability Principle: Why Coincidences, Miracles, and Rare Events Happen Every Day was published by Scientific American in February 2014.

Hand was appointed Officer of the Order of the British Empire (OBE) in the 2013 New Year Honours for services to research and innovation.

David Heron (statistician)David Heron (28 April 1881 - 4 November 1969) was a Scottish statistician who was president of the Royal Statistical Society from 1947–1949.

Gareth Roberts (statistician)Gareth Owen Roberts FRS (born 1964) is a statistician and applied probabilist. He is Professor of Statistics in the Department of Statistics and Director of the Centre for Research in Statistical Methodology (CRiSM) at the University of Warwick. He is an established authority on the stability of Markov chains, especially applied to Markov Chain Monte Carlo (MCMC) theory methodology for a wide range of latent statistical models with applications in spatial statistics, infectious disease epidemiology and finance.

Journal of the Royal Statistical SocietyThe Journal of the Royal Statistical Society is a peer-reviewed scientific journal of statistics. It comprises three series and is published by Blackwell Publishing for the Royal Statistical Society.

Mathematical statisticsMathematical statistics is the application of probability theory, a branch of mathematics, to statistics, as opposed to techniques for collecting statistical data. Specific mathematical techniques which are used for this include mathematical analysis, linear algebra, stochastic analysis, differential equations, and measure theory.

Matthew Stephens (statistician)Matthew Stephens (born 1970) is a Bayesian statistician and professor in the departments of Human Genetics and Statistics at the University of Chicago. He is known for the Li and Stephens model as an efficient coalescent.

Medical statisticsMedical statistics deals with applications of statistics to medicine and the health sciences, including epidemiology, public health, forensic medicine, and clinical research. Medical statistics has been a recognized branch of statistics in the United Kingdom for more than 40 years but the term has not come into general use in North America, where the wider term 'biostatistics' is more commonly used. However, "biostatistics" more commonly connotes all applications of statistics to biology. Medical statistics is a subdiscipline of statistics. "It is the science of summarizing, collecting, presenting and interpreting data in medical practice, and using them to estimate the magnitude of associations and test hypotheses. It has a central role in medical investigations. It not only provides a way of organizing information on a wider and more formal basis than relying on the exchange of anecdotes and personal experience, but also takes into account the intrinsic variation inherent in most biological processes."

Office for National StatisticsThe Office for National Statistics (ONS) is the executive office of the UK Statistics Authority, a non-ministerial department which reports directly to the UK Parliament.

Peter Green (statistician)Peter Green, FRS (born 28 April 1950) is a British Bayesian statistician. He is Emeritus Professor and Professorial Research Fellow at the University of Bristol, and a Professor at the University of Technology, Sydney. He is distinguished for his contributions to computational statistics, in particular his contributions to spatial statistics and semi-parametric regression models and also his development of reversible-jump Markov chain Monte Carlo.

Green was born in Solihull and attended Solihull School. He studied mathematics at Oxford University before moving to the University of Sheffield for postgraduate study, where he was awarded an MSc in probability and statistics and a PhD in applied probability.He was elected a Fellow of the Royal Society in 2003. He served as President of the Royal Statistical Society from 2001 to 2003, having previously been awarded its Guy Medal in both Bronze (1987) and Silver (1999). He held a Royal Society Wolfson Research Merit Award from 2006 to 2011. He was President of the International Society for Bayesian Analysis for the year 2007.

He is editor of the journal Statistical Science for 2014-2016.

Richard Fletcher (American politician)Richard Fletcher (January 8, 1788 – June 21, 1869) was a member of the United States House of Representatives from Massachusetts. The brother of Governor Ryland Fletcher, he was born in Cavendish, Vermont on January 8, 1788. He pursued classical studies and graduated from Dartmouth College in 1806. He taught school in Salisbury, New Hampshire, studied law, was admitted to the bar and commenced practice there.

He moved to Boston in 1819 and was elected as a Whig to the Twenty-fifth Congress (March 4, 1837 – March 4, 1839). Fletcher was not a candidate for renomination to the Twenty-sixth Congress. He served as a judge of the Massachusetts Supreme Court 1848–1853, and died in Boston on June 21, 1869. His interment was in Mount Auburn Cemetery in Cambridge.

Fletcher was elected as the first president of the American Statistical Association, although by the ASA's own admission, he was "little more than a figurehead".

Social statisticsSocial statistics is the use of statistical measurement systems to study human behavior in a social environment. This can be accomplished through polling a group of people, evaluating a subset of data obtained about a group of people, or by observation and statistical analysis of a set of data that relates to people and their behaviors.

Social scientists use social statistics for many purposes, including:

the evaluation of the quality of services available to a group or organization,

analyzing behaviors of groups of people in their environment and special situations,

determining the wants of people through statistical sampling.

The American StatisticianThe American Statistician is a quarterly peer-reviewed scientific journal covering statistics published by Taylor & Francis on behalf of the American Statistical Association. It was established in 1947 and the editor-in-chief is Daniel R. Jeske (University of California, Riverside).

William Gemmell CochranWilliam Gemmell Cochran (15 July 1909 – 29 March 1980) was a prominent statistician. He was born in Scotland but spent most of his life in the United States.

Cochran studied mathematics at the University of Glasgow and the University of Cambridge. He worked at Rothamsted Experimental Station from 1934 to 1939, when he moved to the United States. There he helped establish several departments of statistics. His longest spell in any one university was at Harvard, which he joined in 1957 and from which he retired in 1976.

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