Which of the Following Is NOT a Characteristic of the PERT

Multiple Choice

Which of the following is NOT a characteristic of the PERT method?

A) It assumes project activities are independent of each other and not affected by common factors.
B) Total project time T_E) ) is assumed to have a normal distribution.
C) The distribution of possible times for an individual activity is described as a beta distribution.
D) Activity estimates are known and certain.
E) All of the above are characteristics of the PERT method.