Portuguese/Portugal / Português/Portugal Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Variance is a measurement of the span of numbers in a data set. Data collection stops for the historical collection definition on all managed systems it was distributed to. Chinese Simplified / 简体中文 Catalan / Català Significance Magazine. "A Century of Variance," Page 21. In a regression analysis, the goal is to determine how well a data series can be fitted to a function that might help to explain how the data series was generated. Thai / ภาษาไทย Norwegian / Norsk You can learn more about the standards we follow in producing accurate, unbiased content in our. “Statistics.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/statistics. English / English Statistics are used to make better-informed business decisions. IBM Knowledge Center uses JavaScript. Japanese / 日本語 Search in IBM Knowledge Center. Historical research design involves synthesizing data from many different sources. Two types of statistical methods are used in analyzing data: descriptive statistics and inferential statistics. historical control: A control group that is chosen from a group of patients who were observed at some time in the past or for whom data are available through records. See more. Bulgarian / Български Accessed 23 Oct. 2020. Data sets with high kurtosis have heavy tails, or outliers, which implies greater investment risk in the form of occasional wild returns. Test Your Knowledge - and learn some interesting things along the way. Macedonian / македонски Statistics definition is - a branch of mathematics dealing with the collection, analysis, interpretation, and presentation of masses of numerical data. Some statistical measures include the following: Statistics is a term used to summarize a process that an analyst uses to characterize a data set. Scripting appears to be disabled or not supported for your browser. Hungarian / Magyar A mean is the mathematical average of a group of two or more numerals. Search historical background and thousands of other words in English definition and synonym dictionary from Reverso. The mean for a specified set of numbers can be computed in multiple ways, including the arithmetic mean, which shows how well a specific commodity performs over time, and the geometric mean, which shows the performance results of an investor’s portfolio invested in that same commodity over the same period. Danish / Dansk Statistics definition, the science that deals with the collection, classification, analysis, and interpretation of numerical facts or data, and that, by use of mathematical theories of probability, imposes order and regularity on aggregates of more or less disparate elements.