Draw an activity on node network diagram and perform forward and backward pass calculations.

$\backslash$table$[[$Activity$,$Predecessor,Duration$],[$A$,-,2],[$B$,$A$,5],[$C$,$A$,9],[$D$,$A$,3],[$E$,$B$,6],[$F$,$B$,$ C$,4],[$G$,$C$,$ D$,2],[$H$,$E$,$ F$,4],[$I$,$G$,$ H$,2]]$

Complete the following table for the AON created in Question $2.$

$\backslash$table$[[$Activity$,$Total Float,Free Float$],[$A$,,],[$B$,,],[$C$,,],[$D$,,],[$E$,,],[$F$,,],[$G$,,],[$H$,,],[$I$,,]]$