The term "stationary data" means that
A)the mean is constant
B)there is an increasing linear trend over time
C)the fitted line goes through the origin
D)there is no change in the data

Question

Quizplus · Accepted Answer

Stationary data means that the statistical properties of the data do not change over time. This includes a constant mean, constant variance, and constant autocorrelation. Therefore, choice A, which states that the mean is constant, is the correct answer. Choices B and C both imply a trend or a specific relationship between the variables over time, which is not necessarily the case for stationary data. Choice D is too vague and not precise enough to accurately describe stationary data.

The Term "Stationary Data" Means That