Which one of the following statements is not correct?
Option (A)
PERT is probabilistic and CPM is deterministic
Option (B)
In PERT, events are used and in CPM activities are used
In CPM, the probability to complete the project in a given time-duration is calculated
In CPM crashing is carried out
Correct Option:
Question Solution:
(i) PERT ® Event oriented
CPM ® Activity Oriented
(ii) PERT approach takes account of the uncertainties. In this approach3 time calues are associated which each activity. So it is probabilistic

Whereas CPM involves the critical path which is the largest path in the network from starting is the ending event and defines the minimum time required to complete the project. So it is deterministic.
If the project has to be shortened, then crashing is carried out by the application of additional resources. Other activities will not give result unless the critical path is shortened first.