Following are the three time estimates for a task in a project: optimistic completion time = 2 weeks
Most likely completion time = 4 weeks
Pessimistic completion time = 7 weeks
Compute the task variance.
A)0.5 weeks
B)1.23 weeks
C)0.69 weeks
D)2.25 weeks

Question

Quizplus · Accepted Answer

The variance of a task in project management, particularly when using the PERT (Program Evaluation and Review Technique), is calculated using the formula: variance = [(Pessimistic - Optimistic) / 6]^2. Plugging in the given values: variance = [(7 - 2) / 6]^2 = (5/6)^2 = 0.69 weeks^2.

Following Are the Three Time Estimates for a Task in a Project