Multiple Choice
If the trend model yt = a + bt + ct² is fitted to a time series, we would get:
A) R² that could be lower than the linear model.
B) R² that could be either higher or lower than the linear model.
C) R² that is at least as high as the linear model.
D) no R² for this type of model because it is nonlinear.
Correct Answer:

Verified
Correct Answer:
Verified
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