Given the diagram of activities A through L shown in Figure EX 13.8 , with their pessimistic, most likely, and optimistic duration times in weeks:
a. Calculate the mean duration for each activity.
b. Calculate the variance for each activity time.
c. Identify the mean and standard deviation for each path.
d. Calculate the project completion probability for thirty, thirty - one, and thirty - two weeks.
![286_Path Diagram.jpg](https://secure.tutorsglobe.com/CMSImages/286_Path Diagram.jpg)