A Project Has 3 Independent Stages That Must Be Completed

question 100

Multiple Choice

A project has 3 independent stages that must be completed in sequence.The time to complete each stage is a random variable.The standard deviations of the completion times for the stages are σ1 = 8,σ2 = 10,σ3 = 18.The standard deviation of the overall project completion time is

• A)12.00
• B)36.00
• C)22.09
• D)25.24

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