Question: Plot the autocorrelation functions against the lag order for the following models. Label the x-axis and y-axis appropriately and clearly. For all models, &tis

Plot the autocorrelation functions against the lag order for the following models. Label the x-axis and y-axis appropriately and clearly. For all models, &tis a white noise term with a mean of zero and a standard deviation of 0.1. (a) Xt=0.5+Xt-1+Et (b) (c) Xt=0.5+t-1+Et Xt=0.5-0.8Xt-1+Et

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