Correlation

AP Statistics· difficulty 2/5

Two studies report correlations of r = 0.92 and r = -0.92.

Which statement is correct?

A
$The relationships have equal strength but opposite directions$
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B
$Strength cannot be compared$
C
$The second relationship is stronger$
D
$The first relationship is stronger$

Explanation

Strength depends on |r|, which is equal here; the signs only indicate direction.

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