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the following questions with TRUE or FALSE (a) Correlation measures the strength of any relationship between X and Y . (b) Adding an interaction term
the following questions with TRUE or FALSE (a) Correlation measures the strength of any relationship between X and Y . (b) Adding an interaction term will not (in general) change the value of a prediction. (c) The sign of the slope and the sign of the sample correlation should match. (d) If an error for a regression line is positive, that means we underestimated the value in our dataset
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