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Statistics Overview - Preparation - Day In The Life - Earnings - Employment - Career Path Forecast - Professional Organizations - Profiles of Statisticians -
Overview PowerPoint - Overview Podcast


Statistics is the scientific application of mathematical principles to the collection, analysis, and presentation of numerical data. Statisticians contribute to scientific inquiry by applying their mathematical and statistical knowledge to the design of surveys and experiments; the collection, processing, and analysis of data; and the interpretation of the results.

Statisticians may apply their knowledge of statistical methods to a variety of subject areas, such as biology, economics, engineering, medicine, public health, psychology, marketing, education, and sports. Many economic, social, political, and military decisions cannot be made without statistical techniques, such as the design of experiments to gain Federal approval of a newly manufactured drug.

One technique that is especially useful to statisticians is sampling -- obtaining information about a population of people or group of things by surveying a small portion of the total. For example, to determine the size of the audience for particular programs, television-rating services survey only a few thousand families, rather than all viewers. Statisticians decide where and how to gather the data, determine the type and size of the sample group, and develop the survey questionnaire or reporting form. They also prepare instructions for workers who will collect and tabulate the data. Finally, statisticians analyze, interpret, and summarize the data using computer software.

In business and industry, statisticians play an important role in quality control and in product development and improvement. In an automobile company, for example, statisticians might design experiments to determine the failure time of engines exposed to extreme weather conditions by running individual engines until failure and breakdown. Working for a pharmaceutical company, statisticians might develop and evaluate the results of clinical trials to determine the safety and effectiveness of new medications. And, at a computer software firm, statisticians might help construct new statistical software packages to analyze data more accurately and efficiently. In addition to product development and testing, some statisticians also are involved in deciding what products to manufacture, how much to charge for them, and to whom the products should be marketed. Statisticians also may manage assets and liabilities, determining the risks and returns of certain investments.

Nearly every government agency employs statisticians. Some government statisticians develop surveys that measure population growth, consumer prices, or unemployment. Other statisticians work for scientific, environmental, and agricultural agencies and may help figure out the average level of pesticides in drinking water, the number of endangered species living in a particular area, or the number of people afflicted with a certain disease. Statisticians also are employed in national defense agencies, determining the accuracy of new weapons and the likely effectiveness of defense strategies.
Because statistical specialists are employed in so many different kinds of work, specialists who use statistics often have different professional designations. For example, a person using statistical methods to analyze economic data may be called an econometrician, while statisticians in public health and medicine may hold titles such as biostatistician or biometrician.

Statistics Resources

Online

Profiles of Statisticians:
Interviews of Professionals
Overview:
Overview of Statistics
Preparation:
Admission Requirements, Alternate Degree Paths, Graduate Programs, Accredited Programs
Day in the Life:
Teams and Coworkers, Tasks, the Workplace
Earnings:
Employer Options, Salary Ranges, Types of Employers
Employment:
Statistics, Industries, Employers
Career Path Forecast:
Predictions
Professional Organizations:
Resources, Networking, Support
Podcast:
Overview of the field of Statistics
Internet Resources:
American Statistical Association
Statisticians in History (ASA)
The Caucus for Women in Statistics

Note: Some resources in this section are provided by the US Department of Labor, Bureau of Labor Statistics. Our partner, the American Statistical Association offers additional materials and resources.
 


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