$(10$ points$)$ Use the data in the Excel file to show what the first decision node would be

in trying to predict the numeric outcome variable from two nominal inputs $($ Var$\_(1)$ and

Var$\_(2))$ and one numeric input $($Var$\_(3)).$ The splits to check are provided below but you have

to complete the rest of the table and then say which split would be chosen for the first

node.