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chi-square test
(Encyclopedia) chi-square test: see statistics.Greenwich Village
(Encyclopedia) Greenwich VillageGreenwich Villagegrĕnˈĭch [key], residential district of lower Manhattan, New York City, extending S from 14th St. to Houston St. and W from Washington Square to the…radical, in mathematics
(Encyclopedia) radical, in mathematics, symbol () placed over a number or expression, called the radicand, to indicate a root of the radicand. When used without a sign or index number, as in 4, it…bark, sailing vessel
(Encyclopedia) bark or barquebarqueboth: bärk [key], sailing vessel with three masts, of which the mainmast and the foremast are square-rigged while the mizzenmast is fore-and-aft-rigged. Although…Broadway
(Encyclopedia) Broadway, famous thoroughfare in New York City. It extends from Bowling Green near the foot of Manhattan island N to 262d St. in the Bronx. Throughout its length Broadway is chiefly a…Geometry: When Is a Parallelogram a Square?
When Is a Parallelogram a Square?GeometryProofs About QuadrilateralsWhen Is a Quadrilateral a Parallelogram?When Is a Parallelogram a Rectangle?When Is a Parallelogram a Rhombus?When Is a…Student Demonstrations in Tiananmen Square
June 3-4, 1989 A massive demonstration for democratic reform, begun on Tiananmen Square by Chinese students in April, 1989, was brutally repressed on June 3 and 4, 1989. It was initiated to…Brewer's: Queen-Square Hermit
Jeremy Bentham, who lived at No. 1, Queen Square, London. He was the father of the political economists called Utilitarians, whose maxim is, “The greatest happiness of the greatest number…photometry
(Encyclopedia) photometryphotometryfōtŏmˈətrē [key], branch of physics dealing with the measurement of the intensity of a source of light, such as an electric lamp, and with the intensity of light…Young's modulus
(Encyclopedia) Young's modulus [for Thomas Young], number representing (in pounds per square inch or dynes per square centimeter) the ratio of stress to strain for a wire or bar of a given substance…Trending
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