The term $b _ { 1 }$ in the equation $\ddot { y } _ { t } = b _ { 0 } + b _ { 1 } t + b _ { 2 } Q _ { 1 } + b _ { 3 } a _ { 2 } + b _ { 4 } Q _ { 3 }$ , where ?_t represents the predicted value of y at time t, is: A) the time trend. B) the seasonal trend. C) an indicator variable. D) a value between 0 and 4.

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The Answer of The term $b _ { 1 }$ in the equation $\ddot { y } _ { t } = b _ { 0 } + b _ { 1 } t + b _ { 2 } Q _ { 1 } + b _ { 3 } a _ { 2 } + b _ { 4 } Q _ { 3 }$ , where ?_t represents the predicted value of y at time t, is: A) the time trend. B) the seasonal trend. C) an indicator variable. D) a value between 0 and 4.

The Term b1b _ { 1 }b1​ In the Equation y¨t=b0+b1t+b2Q1+b3a2+b4Q3\ddot { y } _ { t } = b _ { 0 } + b _ { 1 } t + b _ { 2 } Q _ { 1 } + b _ { 3 } a _ { 2 } + b _ { 4 } Q _ { 3 }y¨​t​=b0​+b1​t+b2​Q1​+b3​a2​+b4​Q3​

The Term $b _ { 1 }$ In the Equation $\ddot { y } _ { t } = b _ { 0 } + b _ { 1 } t + b _ { 2 } Q _ { 1 } + b _ { 3 } a _ { 2 } + b _ { 4 } Q _ { 3 }$