The probabilistic time is given by (where to = Optimistic time, tp = Pessimistic time, and tn = Most likely time)

• A. <img src="/_files/images/mechanical-engineering/industrial-engineering-and-production-management/741-71-1.png">
• B. <img src="/_files/images/mechanical-engineering/industrial-engineering-and-production-management/741-71-2.png">
• C. <img src="/_files/images/mechanical-engineering/industrial-engineering-and-production-management/741-71-3.png">
• D. <img src="/_files/images/mechanical-engineering/industrial-engineering-and-production-management/741-71-4.png">