The following table of probabilistic time estimates (in weeks)and activity predecessors are provided for a project.

Table 9.2
-Using Table 9.2,the variance for activity E is
A)1.291.
B)1.667.
C)2.582.
D)2.778.

Question

The following table of probabilistic time estimates (in weeks)and activity predecessors are provided for a project.
 
Table 9.2
-Using Table 9.2,the variance for activity E is
A)1.291. 
B)1.667. 
C)2.582. 
D)2.778.

Quizplus · Accepted Answer

The variance for an activity is calculated using the formula (b-a/6)^2, where 'b' is the pessimistic time and 'a' is the optimistic time. The correct choice is based on this calculation.

The Following Table of Probabilistic Time Estimates (In Weeks)and Activity