onsider the following work breakdown structure:

Time Estimates $($days$)$

Activity Precedes Optimistic Most Likely Pessimistic

Start A$,$B$,$C $---$

A D $385062$

B E $9099108$

C End $85100115$

D F $192531$

E End $91100115$

F End $626568$

What is the estimated expected $($mean$)$ time for activity E$?$