Which of the following correctly identifies a difference between cross-sectional data and time series data?
A)Cross-sectional data is based on temporal ordering, whereas time series data is not.
B)Time series data is based on temporal ordering, whereas cross-sectional data is not.
C)Cross-sectional data consists of only qualitative variables, whereas time series data consists of only quantitative variables.
D)Time series data consists of only qualitative variables, whereas cross-sectional data does not include qualitative variables.

Question

Quizplus · Accepted Answer

Cross-sectional data refers to data collected from a group of individuals at a single point in time, whereas time series data refers to data collected over time from the same group of individuals or system. The key difference between the two is that time series data is based on temporal ordering, meaning that the observations are recorded in sequence over time, whereas cross-sectional data is not based on temporal ordering. Thus, choice B is the correct answer. Choices A, C, and D are incorrect because they either describe a characteristic that is not specific to cross-sectional or time series data or they describe a characteristic that is not true for either type of data.

Which of the Following Correctly Identifies a Difference Between Cross-Sectional