You Have Just Used the Network Planning Model and Found

Multiple Choice

You have just used the network planning model and found the critical path length is 60 days and there are two critical paths. The standard deviation of the first critical path is 10 days and the s.d. of the second critical path is 15 days. The probability that the project will be completed in 70 days or less is equal to (2 decimal accuracy)

A) 0.84
B) 0.25
C) 0.16
D) 0.75
E) 0.66