Medical research

Doctors should recommend healthy lifestyle modifications more often

Doctors give their patients advice about healthy lifestyle changes too rarely. A statistical analysis of U.S. health data conducted by MedUni Vienna researchers together with international partners has shown that people suffering ...

Diseases, Conditions, Syndromes

Split liver transplants could safely help sickest children

In a review of registry data for more than 5,300 liver transplants performed in children nationwide, Johns Hopkins Medicine researchers identify the type of patient who is most likely to survive a split liver transplant—receiving ...

Obstetrics & gynaecology

Accepted manuscripts meet more criteria for research reporting

(HealthDay)—Accepted manuscripts for observational studies have better adherence to the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) checklist compared with rejected manuscripts, according ...

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Statistics

Statistics is a mathematical science pertaining to the collection, analysis, interpretation or explanation, and presentation of data. Statisticians improve the quality of data with the design of experiments and survey sampling. Statistics also provides tools for prediction and forecasting using data and statistical models. Statistics is applicable to a wide variety of academic disciplines, including natural and social sciences, government, and business.

Statistical methods can be used to summarize or describe a collection of data; this is called descriptive statistics. This is useful in research, when communicating the results of experiments. In addition, patterns in the data may be modeled in a way that accounts for randomness and uncertainty in the observations, and are then used to draw inferences about the process or population being studied; this is called inferential statistics. Inference is a vital element of scientific advance, since it provides a prediction (based in data) for where a theory logically leads. To further prove the guiding theory, these predictions are tested as well, as part of the scientific method. If the inference holds true, then the descriptive statistics of the new data increase the soundness of that hypothesis. Descriptive statistics and inferential statistics (a.k.a., predictive statistics) together comprise applied statistics.

There is also a discipline called mathematical statistics, which is concerned with the theoretical basis of the subject.

The word statistics can either be singular or plural. In its singular form, statistics refers to the mathematical science discussed in this article. In its plural form, statistics is the plural of the word statistic, which refers to a quantity (such as a mean) calculated from a set of data.

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