The mean Dij and variance Vij for the different activities are given in the following table. Note
that for a dummy activity (a, m, b) = (0,0,0), hence its mean and variance also equal zero
The next table gives the longest path from node 1 to the different nodes, together with their
associated mean and standard deviation.
Node Longest path based on mean durations Path mean Path standard deviation
Finally, the following table computes the probability that each node is realized by time Sj
specified by the analyst.