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Chamberlin, Edward

(Encyclopedia)Chamberlin, Edward, 1866–1967, American economist, b. LaConner, Wash. He taught economics at Harvard (1937–67) and made significant contributions to microeconomics, particularly on competition the...

Carthage, city, United States

(Encyclopedia)Carthage. <1> City (2020 pop. 15,522), seat of Jasper co., SW Mo., on the Spring River; inc. 1873. Its gray marble quarries are the largest of ...

mean

(Encyclopedia)mean, in statistics, a type of average. The arithmetic mean of a group of numbers is found by dividing their sum by the number of members in the group; e.g., the sum of the seven numbers 4, 5, 6, 9, 1...

Savigny, Friedrich Karl von

(Encyclopedia)Savigny, Friedrich Karl von frēˈdrĭkh kärl fən säˈvĭnyē [key], 1779–1861, German jurist and legal historian, a founder of the historical school of jurisprudence. He taught (1810–42) Roman...

trapezoid

(Encyclopedia)trapezoid, closed plane figure bounded by four line segments, or sides, two of which are parallel and two of which are nonparallel. The parallel sides of a trapezoid are called bases and the nonparall...

Effigy Mounds National Monument

(Encyclopedia)Effigy Mounds National Monument: see National Parks and Monuments (table)national parks and monuments (table). ...

De Soto National Memorial

(Encyclopedia)De Soto National Memorial: see National Parks and Monuments (table)national parks and monuments (table). ...

Devils Tower National Monument

(Encyclopedia)Devils Tower National Monument, 1,347 acres (546 hectares), overlooking the Belle Fourche River, NE Wyo.; it was the first designated U.S. national monument (1906). Devils Tower, 865 ft (264 m) high a...

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