Mathematics · Correlation and Regression
If the pairwise correlation coefficients between three random variables X1, X2, and X3 are r12 = cos2(θ), r13 = sin(θ), and r23 = cos(θ), then the partial correlation coefficient r12.3 is equal to:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1tan(θ) - 1
- 2sin(θ) - 1
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- 4cos(θ) - 1
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