Question: There are four activities on the critical path, and the standard deviations for their durations are 5, 12, 34, and 16 days. The standard deviation

There are four activities on the critical path, and the standard deviations for their durations are 5, 12, 34, and 16 days. The standard deviation of the duration of the critical path is:

a. 67

b. 16.75

c. 8.185

d. 1581

e. 39.76

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