Mathematics · Correlation and Regression
In a two-variable regression, the coefficient of correlation between X and Y is 0.8. Y is the dependent variable and X is the independent variable. Which of the following statements is CORRECT?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1R2 = 0.64 and both regression coefficients must be negative
- 2R2 = 0.8 and both regression coefficients must equal 0.8
- 3R2 = 0.64, meaning 64% of variation in Y is explained by X✓
- 4R2 = 0.8, meaning 80% of variation in Y is explained by X
Correct answer
R2 = 0.64, meaning 64% of variation in Y is explained by X
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