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probability

(Encyclopedia)probability, in mathematics, assignment of a number as a measure of the “chance” that a given event will occur. There are certain important restrictions on such a probability measure. In any exper...

psychological test

(Encyclopedia)psychological test, any of a variety of testing procedures for measuring psychological traits and behavior, or for studying some specialized aspect of ability. Several forms of testing have arisen fro...

Gallipoli campaign

(Encyclopedia)Gallipoli campaign, 1915, Allied expedition in World War I for the purpose of gaining control of the Dardanelles and Bosporus straits, capturing Constantinople, and opening a Black Sea supply route to...

Paston Letters

(Encyclopedia)Paston Letters, collection of personal and business correspondence, mostly among members of the Paston family of Norfolk, England. The letters cover the years from 1422 to 1529, together with deeds an...

West Sussex

(Encyclopedia)West Sussex, county (1991 pop. 692,800), 768 sq mi (1,990 sq km), S England. Chichester is the county seat. Administratively, the county is divided into the districts of Chichester, Arun, Worthing, Ad...

mining

(Encyclopedia)mining, extraction of solid mineral resources from the earth. These resources include ores, which contain commercially valuable amounts of metals, such as iron and aluminum; precious stones, such as d...

Ayr, town, Scotland

(Encyclopedia)Ayr âr [key], town, South Ayrshire, SW Scotland, at the mouth of the Ayr River on the Firth of Clyde. Ayr is a sea resort and a port for fishing, the export of iron and a...

Funafuti

(Encyclopedia)Funafuti fo͞onäfo͞oˈtē [key], capital and chief atoll of Tuvalu, S Pacific. It comprises 30 islets of a reef 13 mi (21 km) long, with a land area of c.1 sq mi (2.6 sq km). The islet of Fongafale ...

Zion, in the Bible

(Encyclopedia)Zion sīˈən [key], section of Jerusalem, defined in the Bible as the City of David. Originally the name referred to the Jebusite fortress conquered by David, on the southeastern hill of Jerusalem. Z...

Warm Springs

(Encyclopedia)Warm Springs, resort, Meriwether co., W Ga. The salutary properties of the water springing from Pine Mt. were known to Native Americans, and white settlers learned of them in the late 18th cent. By th...