Question: Consider an ARIMA(0,2,2) process. Write out the resulting model using a. Backshift notation with the backshift operator B. b. Backshift notation with the operator c.

Consider an ARIMA(0,2,2) process. Write out the resulting model using

a. Backshift notation with the backshift operator B.

b. Backshift notation with the operator

c. No backshift notation.

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