Please help, thank you.

Let us say that we have some model y1 = 31X [notice no intercept term}, where HI E R and X, yl E Rm\" {vectors}, which takes in in. data points with the same common yvalue c. In other words, the model is fitted to the data points (31, c], [33, o} . . . [mm us]. Let us also say:r that we have some model ya = 9211' {notice no intercept term], where H: E R and X: '31:! E Rm\" {vectors}, which takes in the same m-values of the 11 data points, except with the common y- value c\". In other words, the model is fitted to the data points [31, o\"), (32, o'] . . . [mm c']. {210.1 a Points: 3 If we run 0L3 on our data, what will be the value of 31? Note that in the answer choices, i = % 2;, 3;. z I x I z a x G r . EL 1:3 H cl (Brim) ': :' . ( Elll mi ) 2111'? .:_;. c- (Eros-a o\") C) None of the above 010.2 a Points: 4 n We now choose to combine all our data points and fit to a combined model: ycomb = Hoom'oXcornh Where 900mb E R and Xmmb, ymh E Ran\". In other words, the model is fitted to the data points ($1, :3] .. . [mm c), (3:1, 6'), . .. , [mm c'} and are fed into ymb. Which of the following is the relationship between Emu, 31, and 32? l/_\\l H 1' 1'3 \"-' Econ-1h = 5 ( 2:11 3,- ) + C ( EL: :1 c,- ) 2- _ at? +63: 'v' Econ-1h $41.: ,z-x, _ 5' +45 M! Boon-1h 13 a z I x 3' None of the above