Examlex
Consider a cell in a contingency table. Given the cell's row total of 200, the cell's column total of 75, and a sample size of 1000, what is the cell's expected frequency?
Marine Sediments
Deposits accumulated on the ocean floor, derived from chemical precipitates, organic matter, or the erosion of terrestrial materials.
Black Smokers
Hydrothermal vents on the seafloor in which hot water from within the rock jets out into cold seawater and forms a cloud of minerals, especially those rich in sulfur.
Sulfide Minerals
Minerals composed of sulfide ions and one or more metals; important as ore minerals and for their chemical properties.
Fast-Spreading Ridge
A geological feature where tectonic plates are diverging at a rapid rate, leading to significant volcanic activity and the formation of new oceanic crust.
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