A Project Has 3 Independent Stages That Must Be Completed

question 47

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

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Definitions:

Death Penalty

A legal punishment in which a person is put to death by the state as retribution for certain crimes.

Homicide Rates

The frequency or number of occasions where an individual unlawfully kills another person, often used as an indicator of societal violence.

Financial Security

The condition of having stable income or other resources to support a standard of living now and in the foreseeable future.

Death Penalty

A legal punishment where the state executes a person as retribution for a crime deemed deserving of death, often surrounded by moral and legal debates.