Mining Engineering > GATE 2026 > Regression Analysis
Using linear regression (least squares), the best-fit line for the given dataset is y = 2.2x + 2.3. Given the residual sum of squares is 25.8, the coefficient of determination (r2), is _______________. (rounded off to two decimal places)
| x | y |
|---|---|
| 2 | 8 |
| 3 | 9 |
| 4 | 7 |
| 5 | 16 |
Correct : 0.48
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