A statistician is a broad term for a professional involved in the field of either theoretical or applied statistics. Statisticians analyze a variety of data to supplement the knowledge of professionals or businesses in the private or public sector. Their work hinges on their ability to produce reliable data using appropriate, up-to-date methods; this can mean, for example, managing and executing surveys or ensuring that accurate data is obtained via other means such as reviewing pre-existing records or via interviews. Statisticians process and analyze the data using different mathematical techniques and specialized software, then summarizing the results into practical advice for their employer. These conclusions may be used to advise on strategy and assist immediate decision-making.
The type of people that statisticians work with varies. In private industry, statisticians may work at improving a supply chain or helping a manufacturing company reach certain operational standards, for example. In the field of medicine, they may work with researchers to evaluate data on new medicine.
Working in the public sector could include government surveys of all kinds, including related to environmental data.
Many statisticians have a master's or doctoral degree in statistics; in general, they combine their degree with other specialized areas of expertise to apply their analysis to that particular field. Statistician positions may also require previous experience in a related role; the ability to use specialized software necessary for statistical analysis is required as well.
May specialize in fields, such as bio-statistics, agricultural statistics, business statistics, economic statistics, or other fields.
May also develop new mathematical theories.
Apply statistical theory to collect, organize, interpret, and summarize numerical data to provide usable information.