Question: The activity times, in three different estimates (optimistic, most likely, and pessimistic), are as follows. Activity Optimistic (a) Most Likely (m) Pessimistic (b) A 2

The activity times, in three different estimates (optimistic, most likely, and pessimistic), are as follows.

Activity Optimistic (a) Most Likely (m) Pessimistic (b)
A 2 6 8
B 6 8 12
C 4 9 15
D 4 5 8
E 2 5 11
F 6 7 9
G 2 4 7
H 3 7 7
What is the variance of the critical path? Round your calculations to the nearest second decimal point. Show all your work.

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