A Process Is Stationary If

question 12

Multiple Choice

A process is stationary if:

• A)any collection of random variables in a sequence is taken and shifted ahead by h time periods; the joint probability distribution changes.
• B)any collection of random variables in a sequence is taken and shifted ahead by h time periods, the joint probability distribution remains unchanged.
• C)there is serial correlation between the error terms of successive time periods and the explanatory variables and the error terms have positive covariance.
• D)there is no serial correlation between the error terms of successive time periods and the explanatory variables and the error terms have positive covariance.

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