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AR ( 1 ) model ) 4.5 - 0.58 2 1 + E , with of = 1.2 1 . Is this process weakly stationary

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AR ( 1 ) model ) 4.5 - 0.58 2 1 + E , with of = 1.2 1 . Is this process weakly stationary ? What is the mean of this process ? 3 . What is the variance of this process ? What is the autocorrelation function of this process ? 5 . What is the variance of Y , + 8 2 + Y's

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