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Quintile may refer to: In statistics, a quantile for the case where the sample or population is divided into fifths; Quintiles, a biotechnology research company based ...
The 5-quantiles are called quintiles or pentiles → QU; The 6-quantiles are called sextiles → S; The 7-quantiles are called septiles → SP; The 8-quantiles are called octiles → O; The 10-quantiles are called deciles → D; The 12-quantiles are called duo-deciles or dodeciles → DD; The 16-quantiles are called hexadeciles → H
IQVIA is the result of the 2016 merger of Quintiles, a leading global contract research organization, and IMS Health, a leading healthcare data and analytics provider [9] The name of the modern company honors the legacy organizations.
The top quintile in personal income in 2019 was $103,012 [2] (included in the chart below). The differences between household and personal income are considerable, since 61% of households now have two or more income earners. [3]
The probit is the quantile function of the normal distribution.. In probability and statistics, the quantile function outputs the value of a random variable such that its probability is less than or equal to an input probability value.
The Census Bureau ranks all households by household income based on its surveys and then divides them into quintiles. The highest-ranked household in each quintile provides the upper income limit for that quintile. [251] Census data reflects market income without adjustments, and is not amenable to adjustment for taxes and transfers.
Quantile regression is a type of regression analysis used in statistics and econometrics. Whereas the method of least squares estimates the conditional mean of the response variable across values of the predictor variables, quantile regression estimates the conditional median (or other quantiles) of the response variable.
The indices are typically ordered from lowest to highest, and grouped into population quintiles. In the 1981, 1991 and 2001 indices, quintile 1 represented the least [33] deprived areas, and quintile 5 represented the most deprived. In 2011, the order was reversed, in line with the ordering of the Scottish Index of Multiple Deprivation.