A cross-sectional data set consists of observations on a variable or several variables over time.

Name: A cross-sectional data set consists of observations on a variable or several variables over time.
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Cross-sectional data is a type of data that is collected at a single point in time, typically from a sample of individuals, organizations, or other units. It does not involve observations over time. Longitudinal or panel data sets consist of observations on a variable or several variables over time.

A Cross-Sectional Data Set Consists of Observations on a Variable