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Ordinary least squares regression of Okun's law.Since the regression line does not miss any of the points by very much, the R 2 of the regression is relatively high.. In statistics, the coefficient of determination, denoted R 2 or r 2 and pronounced "R squared", is the proportion of the variation in the dependent variable that is predictable from the independent variable(s).
Installed faced fiberglass batt insulation with its R-value visible (R-21) [1]. The R-value (in K⋅m 2 /W) is a measure of how well a two-dimensional barrier, such as a layer of insulation, a window or a complete wall or ceiling, resists the conductive [2] flow of heat, in the context of construction. [3]
is the average number of people infected from one other person. For example, Ebola has an of two, so on average, a person who has Ebola will pass it on to two other people.. In epidemiology, the basic reproduction number, or basic reproductive number (sometimes called basic reproduction ratio or basic reproductive rate), denoted (pronounced R nought or R zero), [1] of an infection is the ...
In statistics, an effect size is a value measuring the strength of the relationship between two variables in a population, or a sample-based estimate of that quantity. It can refer to the value of a statistic calculated from a sample of data, the value of one parameter for a hypothetical population, or to the equation that operationalizes how statistics or parameters lead to the effect size ...
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Linke-Hofmann R.II, a World War I German bomber aircraft; ORA R2, a Chinese electric city car; Panzer 35(t), a Czech tank whose Romanian model was known as the R-2. Polikarpov R-2, a Soviet Union copy of the 1931 British Airco DH.9A light bomber aircraft; Ross R-2 Ibis, a glider; Subaru R2, a 2003 Japanese car
Cartesian coordinates identify points of the Euclidean plane with pairs of real numbers. In mathematics, the real coordinate space or real coordinate n-space, of dimension n, denoted R n or , is the set of all ordered n-tuples of real numbers, that is the set of all sequences of n real numbers, also known as coordinate vectors.
The R-2 visa is a non-immigrant visa which allows travel to United States for the spouse or children of an individual who has received an R-1 visa. [20] Children seeking an R-2 visa must be under 21 years of age and unmarried. [1] The status of an R-2 visa holder is dependent on the status of the principal R-1 worker.