Linear Regression Models

AP Statistics· difficulty 3/5

Before using a regression line for predictions, you should check

A
$Only that r is large$
B
$Linearity, no influential outliers, and that the prediction x is within range$
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C
$Only that the slope is positive$
D
$Only the intercept$

Explanation

Linear-fit appropriateness, robustness to outliers, and avoiding extrapolation.

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