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 = 5, σ2 = 4, σ3 = 6. The standard deviation of the overall project completion time is:
A) 8.77
B) 15.0
C) 14.2
D) 9.24
Correct Answer:
Verified
Correct Answer:
Verified
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