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Secondary data refers to data that is collected by someone other than the primary user. [1] Common sources of secondary data for social science include censuses , information collected by government departments, organizational records and data that was originally collected for other research purposes. [ 2 ]
A typical statistics course covers descriptive statistics, probability, binomial and normal distributions, test of hypotheses and confidence intervals, linear regression, and correlation. [68] Modern fundamental statistical courses for undergraduate students focus on correct test selection, results interpretation, and use of free statistics ...
Secondary research involves the summary, collation and/or synthesis of existing research. Secondary research is contrasted with primary research in that primary research involves the generation of data, whereas secondary research uses primary research sources as a source of data for analysis. [ 1 ]
Mathematical statistics is the application of probability theory and other mathematical concepts to statistics, as opposed to techniques for collecting statistical data. [1] Specific mathematical techniques that are commonly used in statistics include mathematical analysis , linear algebra , stochastic analysis , differential equations , and ...
Official statistics are statistics published by government agencies or other public bodies such as international organizations as a public good. They provide quantitative or qualitative information on all major areas of citizens' lives, such as economic and social development, [ 1 ] living conditions, [ 2 ] health , [ 3 ] education , [ 4 ] and ...
The secondary winding, or the electrical or electronic circuit connected to the secondary winding in a transformer; Secondary (chemistry), a term used in organic chemistry to classify various types of compounds; Secondary color, color made from mixing primary colors; Secondary mirror, second mirror element/focusing surface in a reflecting telescope
A secondary source usually provides analysis, commentary, evaluation, context, and interpretation. It is this act of going beyond simple description, and telling us the meaning behind the simple facts, that makes them valuable to Wikipedia. Reputable secondary sources are usually based on more than one primary source.
where p 1 and p 2 are the proportion contained in the primary (that with the greater amplitude) and secondary (that with the lesser amplitude) mode and φ 1 and φ 2 are the φ-sizes of the primary and secondary mode. The φ-size is defined as minus one times the log of the data size taken to the base 2. This transformation is commonly used in ...