member names ID ID ID ID Predecessor Most likely duration Pessimistic Optimistic Estimated Estimated Estimated (P) Duration (d) Duration(d) Acitvity standard Activity Estimated Rang Estimated range Duration deviation Variance lower upper Start 27 47 A 25 40 A 60 89 B and C 15 17 D 20 22 C 44 48 E and F 37 42 29 G Network Diagram I I Project Information Estimated Project Project SD Duration Project V Lower Range Upper range