Problem $3\mathrm{.}17$

$\backslash$table$[[$Time$],[$Activity$,a,m,b,$Immediate predecessor$/$s$],[$A$,4,8,10,-],[$B$,2,8,24,$A$],[$C$,8,12,16,$A$],[$D$,4,6,10,$A$],[$E$,1,2,3,$B$],[$F$,6,8,20,$E$,$ C$],[$G$,2,3,4,$E$,$ C$],[$H$,2,2,2,$F$],[$I$,6,6,6,$F$],[$J$,4,6,12,$D$,$ G$,$ H$],[$K$,2,2,3,$I, J$],[$Draw the network,,,,$],[$Find the CP$,,,,]]$

Find the slack activities and their individual values Determine the probability if the project is completed in less than equal to $50$