General Studies · Correlation and Regression
For the variables X and Y, 4 observations are collected such that ∑x = 10, ∑y = 14, ∑x2 = 30, ∑y2 = 54, and ∑xy = 31. The regression line of y on x is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1y = -0.8x - 5.5
- 2y = 0.8x - 5.5
- 3y = -0.8x + 5.5✓
- 4y = 0.8x + 5.5
Correct answer
y = -0.8x + 5.5
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