What is a Statistician?

Also known as: Data Scientist, Associate Statistician, Professional Statistician, Statistical Analyst.

A statistician is someone who uses mathematical techniques to analyze and interpret data and draw conclusions. Although they work mostly in offices, they may travel in order to supervise surveys or gather data.

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What does a Statistician do?

Statisticians typically do the following:

  • Determine the questions or problems to be addressed
  • Decide what data is needed to answer questions or problems
  • Determine methods for finding or collecting data
  • Design surveys or experiments or opinion polls to collect data
  • Collect data or train others to do so
  • Analyze and interpret data
  • Report conclusions from their analyses

Statisticians design surveys, experiments, and opinion polls to collect data. Some surveys, such as the national census, include data from nearly everyone. For most surveys and opinion polls, however, statisticians use sampling to collect data from some people in a particular group. Statisticians determine the type and size of the sample to be surveyed or polled.

Statisticians develop survey questionnaires or reporting forms for collecting the data they need. They often write instructions for workers who collect and tabulate the data. Surveys may be mailed, conducted over the phone, or collected online or through some other means.

Statisticians analyze the data that is collected. In their analyses, they calculate averages, reliability, and other specifics. They also choose and conduct tests to find out the data’s reliability and validity. They explain the limitations of the data to prevent inaccurate conclusions from being drawn, and they identify trends and relationships.

Statisticians use computers with specialized statistical software to analyze data. Some help to create new statistical software packages to analyze data more accurately and efficiently. They write reports to explain their findings and the data’s limitations. They may present their reports to other team members and to clients with tables, charts, and graphs. They also recommend how to improve the design of future surveys or experiments.

What is the workplace of a Statistician like?

About a third of statisticians work for the government, mostly at the federal level. They are sometimes called mathematical statisticians. These workers develop advanced statistical models for several purposes, such as filling in gaps from non-responses to surveys.

Many statisticians work for private businesses, such as pharmaceutical and insurance companies, and often work in teams with other professionals. For example, in pharmaceutical companies, statisticians may work with scientists to test drugs for government approval. In insurance companies, they may work with actuaries to calculate the risks of insuring different situations. Because statisticians in business provide advice on research projects or oversee the gathering of data, they travel occasionally for face-to-face meetings with team members.


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