Problem: Using the following project information, calculate the variance for each of the project activities.
Activity Optimistic Time Most Likely Time Pessimistic Time Immediate Predecessor(s)
A 3 6 9 none
B 3 5 7 A
C 4 7 12 A
D 4 8 10 B
E 5 10 16 C
F 3 4 5 D,E
G 3 6 8 D,E
H 5 6 10 F
I 5 8 11 G
J 3 3 3 H,I
(Round your answers to 3 decimal places, the tolerance is +/-0.001.)