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10 cards from this deck
rrr
Strength of linear relationship between two variables
−1≤r≤+1-1 \leq r \leq +1−1≤r≤+1
Same direction
Opposite directions
No linear relationship between variables
r=+0.75r = +0.75r=+0.75 to +0.99+0.99+0.99
r=−0.75r = -0.75r=−0.75 to −0.99-0.99−0.99
Correlation does NOT mean causation
Strong linear relationship
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