Question: When estimating an ARMA model, covariance - stationary is obtained if all the autocorrelation coefficients in the ACF are less than or equal to 1

"When estimating an ARMA model, covariance - stationary is obtained if all the autocorrelation coefficients in the ACF are less than or equal to 1 in absolute value"

TRUE OR FALSE

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2. Value-oriented information and

1. Empirical or factual information,

1. To take in the necessary information,