All of the following are true about a stationary time series except
A) Its statistical properties are independent of time.
B) A plot of the series will always exhibit a horizontal pattern.
C) The process generating the data has a constant mean
D) There is no variability in the time series over time.

Question

Quizplus · Accepted Answer

A stationary time series can have variability over time, but its statistical properties like mean and variance remain constant.

All of the Following Are True About a Stationary Time