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Ages of Volunteers The following data represent the ages in years of a sample of 25 volunteers from a charitable organization: 31,43,56,23,49,42,33,61,44,28,48,38,44,35,40,64,52,42,47,39,53,27,36,35, and 20.
-{Ages of Volunteers Narrative} Compute the sample variance and sample standard deviation,and express the numbers in the appropriate units.
Land Mass
A large contiguous area of land on the Earth's surface, distinguished from smaller landforms and bodies of water.
National Park System
A collection of protected areas managed by a nation to conserve natural beauty, wildlife, and historical sites.
Private Lands
Areas of land owned by individuals or companies rather than by the government or public entities.
National Parks
Protected areas intended for the preservation of natural beauty, biodiversity, and cultural heritage, accessible for public enjoyment and education.
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