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What is the standard deviation if the proportion is 0.18 found from ten samples each of size 100,twelve samples each of size 128,fifteen samples each of size 120,and eight samples each of size 125?
Composite Cone
A type of volcano built from layers of lava flows, tephra, and volcanic ash.
Mesa
A landform characterized by a flat-topped mountain or hill, typically with steep sides, found in arid and semi-arid regions.
Shield
A large, relatively flat expanse of ancient, Precambrian igneous and metamorphic rocks that form the stable continental core.
Well-developed Soils
Soils that have undergone extensive formation processes, exhibiting strong structural characteristics and distinct horizons or layers.
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