$[$Part $1$ of $2]$ Consider the network below with optimistic, pessimistic and most likely activity durations listed $($durations given in days$).$

$\backslash$table$[[$Activity$,$Optimistic,Most Likely,Pessimistic$],[$A$,3,4,15],[B,2,3,9],[$C$,7,9,13],[D,10,11,14],[E,2,5,12],[F,2,5,9],[G,7,14,15],[H,4,9,14]]$

All of the network paths are displayed in the table below. Determine the expected duration and variance of each of the paths, and indicate whether or not each path is critical. If there are only three paths, type $-1$ in the duration cell in fourth row of the answer table below, and select NA in the critical path column. State all durations and variances exactly $($i$.$e$.$ not as rounded decimals$).$

Path

Start $ADF$ End

Start $ADH$ End

Start $BCG$ End

Start $BEG$ End

Expected

Duration

$q,$

$q,$

$q,$

$q,$

Critical Path?

Variance

$q,$

$q,$

$q,$