Ch 3 - Time series concepts Flashcards
1
Q
What is a white noise process?
A
A variable with zero serial correlation. We also usually assume zero mean (for simplicity)
2
Q
What is an iid white noise process?
A
Zero serial correlation, distribution is the same at all points at time
3
Q
What is a Gausian white noise process?
A
Serial independence, zero mean, distribution is the same at all points in time
4
Q
________ time series analysis studies the behavior of a single random variable observed over time
A
Univariate
