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Let x=6 Activity Dependency Optimistic Most likely Pessimistic A 15 6 8 B 3 4 5 IC A 2 3 4 D B X-1 x+2 x = (last digit of your roll no. +4) E 1 3 4 F 18 10 15 IG E,F 12 3 4 H C,D 2 2.5 1. By using three estimates for each activity, find: [2] 1.1. Estimated time 'te" 1.2. Activity standard deviation s' 2. Draw PERT network after calculating the events' estimated times and standard deviations. [4] Let x=6 Activity Dependency Optimistic Most likely Pessimistic A 15 6 8 B 3 4 5 IC A 2 3 4 D B X-1 x+2 x = (last digit of your roll no. +4) E 1 3 4 F 18 10 15 IG E,F 12 3 4 H C,D 2 2.5 1. By using three estimates for each activity, find: [2] 1.1. Estimated time 'te" 1.2. Activity standard deviation s' 2. Draw PERT network after calculating the events' estimated times and standard deviations. [4]