Question: 3. Given the information below: Activity Immediate Predecessor(s) Pessimistic ProbableOptimistic 6 B D E F A AB D 14 8 16 10 8 10 9

3. Given the information below: Activity Immediate Predecessor(s) Pessimistic ProbableOptimistic 6 B D E F A AB D 14 8 16 10 8 10 9 2 12 5 6 8 7 2 3 5 a) Draw a network diagram; what is the critical path? (5 marks) b) Calculate the expected duration of each activity; remember to show your formulas and calculations. (15 marks) |Activity Expected Variance of Standard Time time Deviation ES EF L S LF Slack B D E F c) Calculate the expected duration and variance of the critical path, and the standard deviation; remember to show your formulas and calculations

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