a 1 Question 2 (a) In the following project, complete the "expected time and the "variance" columns of each activity. Hence, find the critical path based on the expected time. (All times shown in the table are in days) Activity Immediate Optimistic Most predecessor(s) Pessimistic Expected Variance likely m b time A 3 5 B 2 6 C B 3 6 15 D A 5 7 E A B 2 5 8 F CE 2 3 16 G D 3 9 9 H F 4 5 12 (b) What is the project's expected completion time and the corresponding variance? (c) Find the probability that the project can be completed between 19 and 26 days. 4 6