Question 2. In Project B, there are nine (9) activities as shown in Table 3 below. (duration in months): Table 2: Work Breakdown Schedule for Project B Most Standard Optimistic Pessimistic Expected Variance Activity likely deviation time (to) time (tp) time (te) (0) time (tm) (0) A 2 6 8 B 1 4 9 2 4 5 4 5 6 7 10 16 ---- 8 9 10 3 4 7 2 3 7 1 3 11 (a) Calculate the expected activity duration (te), standard deviation (Ce) and variance (0e)? for each activity. (14 marks) (b) Assuming that the critical Path is B-E-H = 16 months (refer to Appendix A1 and A2 Areas under the standard normal curve) i. What is the probability of completing the project in 18 months? (nearest estimated number) (4 marks) ii. What is the probability of completing the project in 14 months? (nearest estimated number) (4 marks)