Use the data in the table below for the following questions.

$\backslash$table$[[$Activity$,\backslash$table$[[$Immediate$],[$Predecessor$]],\backslash$table$[[$Optimistic$],[$Time$],[($O$.$T$.)]],\backslash$table$[[$Mostly$],[$Likely Time$],[($M$.$T$.)]],\backslash$table$[[$Pessimistic$],[$Time $($P$.$T$.)]]],[$A$,$None,$4,6,9],[$B$,$A$,3,5,7],[$C$,$A$,4,7,12],[$D$,$B$,4,8,10],[$E$,$C$,5,9,15],[$F$,$D$,$ E$,4,4,5],[$G$,$E$,3,6,8],[$H$,$F$,5,6,10],[$I$,$G$,5,8,11],[$J$,$H$,$ I,$3,3,3]]$

What is the expected time for each activity

Activity A: $9\mathrm{.}5$

Activity B: $7$

Activity C: $11\mathrm{.}33$

Activity D: $12\mathrm{.}33$

Activity E: $16$

Activity F: $6\mathrm{.}17$

Activity G: $8\mathrm{.}33$

Activity H: $10\mathrm{.}67$

Activity I: $13\mathrm{.}83$

Activity J: $4$

What is the variance for each activity

Activity A: $0\mathrm{.}69$

Activity B: $0\mathrm{.}44$

Activity C: $1\mathrm{.}78$

Activity D: $1$

Activity E: $2\mathrm{.}78$

Activity F: $0\mathrm{.}03$

Activity G: $0\mathrm{.}69$

Activity H: $0\mathrm{.}69$

Activity I: $1$

Activity J: $0$