Question 1
What is the main purpose of the autocorrelation function (ACF) in time series analysis?
Question 2
In time series forecasting, what does the term 'seasonality' refer to?
Question 3
Which of the following best describes a moving average in time series analysis?
Question 4
What does the 'd' parameter in an ARIMA(p, d, q) model represent?
Question 5
Which of the following is a common method to visualize autocorrelation in a time series?
