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Which substance is considered a primary pollutant?
Simple Random Samples
A subset of individuals chosen from a larger set, where each individual is chosen randomly and entirely by chance.
Population
The entire pool from which a statistical sample is drawn and to which the results of analysis will be generalized.
Finite Population Correction Factor
The term \( \frac{(N - n)}{(N - 1)} \) that is used in the formulas for s_x and s_p whenever a finite population, rather than an infinite population, is being sampled. The generally accepted rule of thumb is to ignore the finite population correction factor whenever n/N ≤ .05.
Standard Error
The standard deviation of the sampling distribution of a statistic, most commonly of the mean.
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