A small software development project has five major activities. The times are estimated and provided in the table below (measured in days)
Acitivity Predecessor a m b
A -- 2 5 8
B -- 10 10 10
C A 4 7 10
D B 2 5 14
E C 3 3 3
(a) What is the expected completion time for this project?
(b) What are the critical activites?
(c) What is he probability that the project could be completed in 17 day?