Question: For each of the following, find the mean and autocovariance and state if it is a stationary process. Assume W is a Gaussian white

For each of the following, find the mean and autocovariance and state if it is a stationary process. Assume

For each of the following, find the mean and autocovariance and state if it is a stationary process. Assume W is a Gaussian white noise process that is iid N(0, 1): (a) Zt-Wt-Wt-2. (b) Zt-Wt+3t. (c) Z=W. (d) Zt-WtWt-1.

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