$\backslash$table$[[,$Time $($days$),$Immediate$],[$Activity$,a,m,b,$Predecessor$($s$)],[$A$,4,7,8,-],[$B$,4,5,6,-],[$C$,2,3,4,-],[$D$,7,8,9,$C$],[$E$,3,5,7,$B$,$ D$],[$F$,7,10,14,$A$,$ E$],[$G$,1,2,3,$A$,$ E$],[$H$,5,7,9,$F$],[$I$,11,12,13,$G$],[$J$,15,17,19,$C$],[$K$,3,7,11,$H$,$ I$]]$

Based on the activity time estimates, the expected times and variance for each of the activities are:

$($Round your responses to two decimal places.$)$

$\backslash$table$[[$Activity$,$Expected Time,Variance$],[$A$,,],[$B$,-,],[$C$,,],[$D$,,],[$E$,,],[$F$,,],[$G$,,],[$H$,,],[$I$,,],[$J$,,],[$K$,,]]$