TIMES (days) Activity Start Node Finish Node OPTIMISTIC t o MOST LIKELY t m PESS
ID: 451238 • Letter: T
Question
TIMES (days)
Activity
Start Node
Finish Node
OPTIMISTIC
to
MOST LIKELY
tm
PESSIMISTIC
tp
A
1
2
25
34
61
B
1
3
21
27
39
C
2
5
18
42
66
D
3
4
32
50
68
E
4
5
8
20
44
Standard Deviation =
Activity C………te =
Standard Deviation =
Activity D………te =
Standard Deviation =
Activity E………te =
Standard Deviation = 6
Path 1 – 2 – 5
Mean Time =
Standard Deviation =10
Path 1 – 3 – 4 – 5
Mean Time =
Standard Deviation =
Save
TIMES (days)
Activity
Start Node
Finish Node
OPTIMISTIC
to
MOST LIKELY
tm
PESSIMISTIC
tp
A
1
2
25
34
61
B
1
3
21
27
39
C
2
5
18
42
66
D
3
4
32
50
68
E
4
5
8
20
44
Explanation / Answer
Accepted Activity Duration = {to + (4*tm) + tp}/6
Standard Deviation = (tp - to)/6
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