Mathematics · Correlation and Regression
For a bivariate data set on (x, y), given the sample means x̄ = 1.0, ȳ = 2.0, standard deviations sx = 3.0, sy = 9.0, and correlation coefficient r = 0.8, the regression line of y on x is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1y = 1 + 2.4(x - 1)
- 2y = 2 + 0.27(x - 1)
- 3y = 2 + 2.4(x - 1)✓
- 4y = 1 + 0.27(x - 2)
Correct answer
y = 2 + 2.4(x - 1)
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