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In descriptive statistics, the range of a set of data is size of the narrowest interval which contains all the data. It is calculated as the difference between the largest and smallest values (also known as the sample maximum and minimum ). [ 1] It is expressed in the same units as the data. The range provides an indication of statistical ...
A significant degree of consensus exists around the date range of the baby boomer cohort, with the generation considered to cover those born from 1946 to 1964 by various organizations such as the Merriam-Webster Online Dictionary, [27] Pew Research Center, [28] U.S. Bureau of Labor Statistics, [29] [30] Federal Reserve Board, [31] Australian ...
They acknowledge disagreements, complaints over date ranges, generation names, and the overgeneralized "personality" of each generation. They suggest that marketers and journalists use the different groupings to target their marketing to particular age groups. However, they cite Pew's 1981–1996 definition to define Millennials. [50]
Statistical data type. In statistics, groups of individual data points may be classified as belonging to any of various statistical data types, e.g. categorical ("red", "blue", "green"), real number ( 1.68, −5, 1.7 × 10+6 ), odd number (1,3,5) etc. The data type is a fundamental component of the semantic content of the variable, and controls ...
Date and age range definitions. Western fertility rates, 1960–1980. Generation X is the demographic cohort following the post–World War II baby-boom, representing a generational change from the baby boomers. Many researchers and demographers use dates that correspond to the fertility-patterns in the population.
Statistical inference is the process of using data analysis to infer properties of an underlying distribution of probability. [ 1] Inferential statistical analysis infers properties of a population, for example by testing hypotheses and deriving estimates. It is assumed that the observed data set is sampled from a larger population.
Statistics (from German: Statistik, orig. "description of a state, a country") [ 1][ 2] is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data. [ 3][ 4][ 5] In applying statistics to a scientific, industrial, or social problem, it is conventional to begin with a statistical population or ...
History of statistics. Statistics, in the modern sense of the word, began evolving in the 18th century in response to the novel needs of industrializing sovereign states . In early times, the meaning was restricted to information about states, particularly demographics such as population. This was later extended to include all collections of ...