Examlex
Suppose μ = 50 and σ2 = 100 for a population. In a sample where n = 100 is randomly taken, 90% of all possible sample means will fall between 49 and 51.
Service
An intangible activity or benefit provided to satisfy the needs of a consumer or business.
Essential Goods
Items considered necessary for basic human survival and well-being, such as food, water, and shelter.
Nonessential Goods
Goods considered as luxuries or not necessary for basic living, often subject to reduced spending during economic downturns.
Expensive
Involving high cost or price; something that is costly.
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