00:01
Hello students, in a part of the question we want to calculate the expected duration.
00:07
The formula to calculate expected duration is equal to a plus 4m plus b divided by 6 where a is the optimistic time, b is the pessimistic time and m is the probable time.
00:27
Expected duration of j is calculated as 10 .5, k is calculated as 8, l is calculated as 6 .5, m is calculated as 3, n is calculated as 5, o is calculated as 7 and p is calculated as 7 .5.
00:54
Now let's move on to b part of the question.
00:57
Here we want to find the variance of critical path that is critical path is a longest duration indicating path from all possible paths.
01:12
Here critical path is j, m, n, p.
01:17
Projected duration is equal to take the sum of expected duration of j, m, n and p that is 10 .5 plus 3 plus 5 plus 7 .5 which is equal to 26...