A simple project comprises of two start-to-end parallel paths, each with three activities in series, with no interpath dependencies. The a, m, b data (in days) for each activity are shown in the diagram. Assuming that three activities in series are enough for further computations, what will be the total project duration and its standard deviation?
1
35 1 / 2 days and 14 / 3 days
2
34 1 / 2 days and 5 / 2 days
3
35 1 / 2 days and 13 / 6 days
4
34 1 / 2 days and 11 / 6 days