In statistics, epidemiology, marketing and demography, a cohort is a group of subjects who share a defining characteristic (typically subjects who experienced a common event in a selected time period, such as birth or graduation). == Comparison with period data == Cohort data can oftentimes be more advantageous to demographers than period data.
In statistics, epidemiology, marketing and demography, a cohort is a group of subjects who share a defining characteristic (typically subjects who experienced a common event in a selected time period, such as birth or graduation). == Comparison with period data == Cohort data can oftentimes be more advantageous to demographers than period data.
Source: Wikipedia "Cohort (statistics)" · CC BY-SA 4.0
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