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Two-Variable Data: Models and Scatterplots

SAT Math· difficulty 4/5

Which value of correlation coefficient rr indicates the strongest linear association?

  • A

    r=0.3r = 0.3

  • B

    r=0.6r = 0.6

  • C

    r=−0.85r = -0.85

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  • D

    r=−0.2r = -0.2

Explanation

Strength of correlation depends on ∣r∣|r|. ∣−0.85∣=0.85|-0.85| = 0.85 is the largest.

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