$16$

$000411$

Given the project information in the following table, what is the probability of completing the project in $70$ days?

$\backslash$table$[[$Activity$,$Predecessor,Optimistic $($a$),$Mosk Likely $($m$),$Pessimistic $($b$)],[$A$,$None,$17,29,47],[$B$,$A$,6,12,24],[$C$,$A$,16,19,28],[$D$,$B$,13,16,19],[$E$,$C$,2,5,14],[$F$,$D$,$E$,2,5,8]]$