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Question
A fundamental distinction between trend projection and linear regression is that
A) trend projection uses least squares while linear regression does not
B) only linear regression can have a negative slope
C) in trend projection the independent variable is time; in linear regression the independent variable need not be time, but can be any variable with explanatory power
D) trend projection can be a function of several variables, while linear regression can only be a function of one variable
E) trend projection uses two smoothing constants, not just one
Answer
This answer is hidden. It contains 1 characters.
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