?²Y_t
A)= ?Y_t - ?Y_t-1 $Y _ { t } ^ { 2 }$

question 35

Multiple Choice

?²Y_t

• A)= ?Y_t - ?Y_t-1.
• B)= \(Y _ { t } ^ { 2 }\) - \(Y _ { t - 1 } ^ { 2 }\)
• C)= ?Y_t -?Y_t-2.
• D)= Y_t - Y_t-2.

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