A project network is shown below.Use a forward and a backward pass to determine the critical path,and then fill out the table below. Now assume that the times listed are only the expected times instead of being fixed times.Is the probability of being finished in more than 28 weeks more or less than 50%?

Question

A project network is shown below.Use a forward and a backward pass to determine the critical path,and then fill out the table below.   Now assume that the times listed are only the expected times instead of being fixed times.Is the probability of being finished in more than 28 weeks more or less than 50%?

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The Answer of A project network is shown below.Use a forward and a backward pass to determine the critical path,and then fill out the table below.   Now assume that the times listed are only the expected times instead of being fixed times.Is the probability of being finished in more than 28 weeks more or less than 50%?

A Project Network Is Shown Below