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Age Group
A division of populations based on age, used in statistical analysis to compare different demographic segments.
Frequency
The rate at which a repeated event happens in a given unit of time or space.
Null Hypothesis
a statistical hypothesis that assumes no effect or no difference between phenomena or populations.
Level of Significance
A threshold in statistical analysis that measures the probability of rejecting a true null hypothesis; commonly set at values like 0.05 or 0.01.
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