Can someone explain part A?

Regarding the project management, a. What is the main difference between PERT and CPM analysis for project management? (4 pts) b. How do you compute the variance of the total project completion time in PERT analysis? (4 pts) c. In Pert analysis, for a given due date D, if the total project time variation increases, how does the probability that the project will be completed before the due date changes? Please explain. (4 pts) 1 A- B 7 e I Previous page