Saved Bookmarks
| 1. |
Write the Normal equations for fitting the parabolic trend, y = a + bx + cx2. |
|
Answer» Normal equations are : na + bΣx + cΣx2 = Σy. aΣx + bΣx2 + cΣx3 = Σxy aΣx2 + bΣx3 + cΣx4 = Σx2y |
|