CUET Mathematics - For a certain data (x_i, y_i), i = 1,2,...,7: _i=1^7 y_i = 246 and _i=1^7 u_iy_i = 29, _i=1^7 u_i^2 = 28 where u_i = x_i - 2004, then straight line trend by the method of least square is : | PYQs + Solutions | AfterBoards