[1 1 1 1 1 4 5 3 6 4 6 7 5 8 6] Multiplicamos: (X'X) = matriz 3x3.
Sustituir b₀ en (3): 4580 = 40(134 - 93b₁ - 8b₂) + 3160b₁ + 418b₂ 4580 = 5360 - 3720b₁ - 320b₂ + 3160b₁ + 418b₂ 4580 = 5360 -560b₁ + 98b₂ regresion lineal multiple ejercicios resueltos a mano
X' =
Restar 62310: 5040 = 3580b₁ - 560b₂ → dividir 20: 252 = 179b₁ - 28b₂ (A) [1 1 1 1 1 4 5 3