Question: Let Yt be an MA(2) process, Yt = + t + 1t + 2t-2. Find formulas for the autocovariance and autocorrelation functions of Yt.

Let Yt be an MA(2) process,
Yt = μ + ∈t + θ1∈t + θ2∈t-2.
Find formulas for the autocovariance and autocorrelation functions of Yt.

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