Activity Duration (Days) Optimistic Most Likely Pessimistic Preceding Task A 41 B C 50 60 70 41 54 58 32 59 66 82 44 A D B What is the estimated expected (mean) time for activity D? Multiple Choice 32 days 41 days 44 days 42 days 40 days Prey 3 Duration (days) Preceding Task Activity B Optimistic 41 54 58 Most Likely 50 60 70 41 C Pessimistic 59 66 82 44 D A B 32 What is the estimated standard deviation in the time for activity D? Multiple Choice O days 2 days 3 days 4 day 12 days