Examlex
In a study of factors affecting whether soldiers decide to reenlist, 320 subjects were measured for an index of satisfaction. The sample mean is 28.8 and the sample standard deviation is 7.3. Use the given sample data to construct the 98 percent confidence interval for the population mean for level of satisfaction.
Sustainable Development
Development that meets the needs of the present without compromising the ability of future generations to meet their own needs, emphasizing a balance between economic growth, environmental protection, and social equity.
Conservation
The protection, preservation, management, or restoration of natural environments, ecosystems, vegetation, and wildlife.
Earth Day
An annual event conceived of by environmental activist and former senator Gaylord Nelson to encourage support for and increase awareness of environmental concerns; first celebrated on April 22, 1970.
Environmental Activist
An individual who actively promotes the protection and preservation of the environment through various actions and advocacy.
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