Question: In a simple PERT Project network, three tasks A,B and C must be completed. A must be finished before B and B must be finished

In a simple PERT Project network, three tasks A,B and C

In a simple PERT Project network, three tasks A,B and C must be completed. A must be finished before B and B must be finished before C. A's three task time estimates =(2,5,8); B's three task time estimates =(7,10,13); C's three task time estimates =(4,7,10). Which of the following statements is true? The average time for A is 7 and for C is 10 . The average times for C and B are 11 and 15 . The completion time variances for A,B and C are 1,1 and 2 . The average completion times for A,B and C are 5,10 and 7

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