A time series is ________.
A) any set of data recorded at the same point in time
B) a set of sequential observations of a variable over time
C) a set of randomly measured data points of multiple variables at the same point in time
D) any set of data collected without regard to differences in time

Question

Quizplus · Accepted Answer

A time series refers to a set of sequential observations of a variable over time. Option A does not specify any condition on the nature of the data being recorded. Option C refers to cross-sectional data. Option D is a broad statement which does not specify any condition on the nature of data being collected.

A Time Series Is ________