● Using the problem stated in the Special window, Calculate the deviation of duration for the task, using the PERT concept of standard deviation of task duration.
A.
0.5
B.
1
C.
1.8
D.
2.2
E.
2.8
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【简答题】Children and young people are at the heart of society. A good education enables them, as global citizens, to respond to the challenges of a complex world, and contribute to building peaceful and susta...