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Consider the time series (Xt : te Z), where Xt = 1 + wt - 0.75wt-2 and wt ~ IIDN(0, 1). Determine and . the

Consider the time series (Xt : te Z), where Xt = 1 + wt - 0.75wt-2 and wt ~ IIDN(0, 1). Determine and . the mean function of {Xt} . Cov(Xt, Xt), Cov(Xt+1, Xt), Cov(Xt+2, Xt), Cov(Xt+3, Xt)

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