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If the population distribution is unknown,in most cases the sampling distribution of the mean can be approximated by the normal distribution if the samples contain at least 30 observations.
Inequality
The unequal distribution of resources, rights, and opportunities among individuals or groups in society.
Benefit
An advantage or profit gained from something.
Morality
A system of beliefs and principles concerning the distinction between right and wrong or good and bad behavior.
Institution
A structured and established organization or foundation, often societal or public, that serves a specific purpose, such as educational, financial, religious, or governmental.
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