Preceding Activity A B. D E F G H B A, B D E F. G Optimistic 1 4 2 3 3 2 2 3 M N Most Likely 2 5 3 5 3 2 4 3 Pessimistic 6 12 7 7 3 5 6 12 Project completion time is: 21.5 weeks O 24.5 weeks O 22 weeks O 28 weeks O None of the answers Expected times of activities B & H are respectively * O 5&2 O 2.5 &4 O 6 &4.5 3 &3.5 O None of the answers Project variance is the and it is equal to * sum of the variances of critical path activities; 4.544 O sum of the variances of all activities; 5.15 sum of the variances of critical path activities; 5.415 Project Standard deviation is equal to 2.877 O 3.237 O 5.870 O 2.327 None of the answers Determine the "Project's Expected Date of Completion" if the probability of completion is 90.658% * 20.5 weeks 24.5 weeks 26 weeks 12 weeks None of the answers