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The adult population must equal the sum of the employed and the unemployed.
Confidence Level
A measure of certainty or probability, expressed as a percentage, that a specified parameter lies within a specified interval in statistical analysis.
Sample Size
The number of observations or data points collected from a population for the purpose of statistical analysis.
Confidence Interval
A span of numbers, obtained from sampled data, that probably includes the value of an unseen population measure within a specified confidence level.
Population Parameter
A characteristic or measure that describes an aspect of an entire population, such as its mean, variance, or standard deviation.
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