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Cartoon by James Gillray satirizing Sir Francis Buller, 1782: "Judge Thumb; or, Patent Sticks for Family Correction: Warranted Lawful!". A modern folk etymology [14] relates the phrase to domestic violence via an alleged rule under English common law which permitted wife-beating provided that the implement used was a rod or stick no thicker than a man's thumb. [6]
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 ...
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).
Either way, these variations would have been derived from the Indo-European root word -peuk, meaning "to prick". [120] The expression "rule of thumb" did not originate from an English law allowing a man to beat his wife with a stick no thicker than his thumb, and there is no evidence that such a law ever existed. [122]
An idiom is a common word or phrase with a figurative, non-literal meaning that is understood culturally and differs from what its composite words' denotations would suggest; i.e. the words together have a meaning that is different from the dictionary definitions of the individual words (although some idioms do retain their literal meanings – see the example "kick the bucket" below).
An idiom dictionary may be a traditional book or expressed in another medium such as a database within software for machine translation.Examples of the genre include Brewer's Dictionary of Phrase and Fable, which explains traditional allusions and proverbs, and Fowler's Modern English Usage, which was conceived as an idiom dictionary following the completion of the Concise Oxford English ...
Researchers have used Cohen's h as follows.. Describe the differences in proportions using the rule of thumb criteria set out by Cohen. [1] Namely, h = 0.2 is a "small" difference, h = 0.5 is a "medium" difference, and h = 0.8 is a "large" difference.
Various rules of thumb may be used to decide whether n is large enough, and p is far enough from the extremes of zero or one: One rule [ 32 ] is that for n > 5 the normal approximation is adequate if the absolute value of the skewness is strictly less than 0.3; that is, if