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Let Xt=3+Wt-.8Wt-1, t-1,2,3... where Wt is i.i.d. N(0,^2), where =3. 1. Compute E(Xt) and Var(Xt). 2. Find the correlation between Xt and Wt-1.

Let Xt=3+Wt-.8Wt-1, t-1,2,3... where Wt is i.i.d. N(0,^2), where =3. 1. Compute E(Xt) and Var(Xt). 2. Find the correlation between Xt and Wt-1.

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