2. Determine the root-level split of a classification and regression tree (CART) to classify salary level based on the other variables. The training data table: Record level Female Male Male Male Female Male Female Female Male Female Male 45 25 25 35 26 45 40 Management Mana Management Manag Sales Sales Sales Sales 10 25 The table below shows all possible candidate splits that could occur at the root note using predictor variable Occupation, Gender and Age Candidate LNode R Node Occupation Service Occupation-Management or Sales or Staff Occupation-Management Occupation Sales tion-Service or Sales or Staff Occupation Service or Management or Staff Occupation Staff Occupation Service or Management or Occupation-Sales or Staff Occupation Management or Staff Occupation-Service or Management Occupation Service or Sales Occupation Service or Staff Gender Male Agec-25 Age 25 Age 35 Age45 ent or Sales 10