Question: please help with finding expected time for certain activity, finding variance for an activity, and finding critical path. thank you 3. The activities of a

please help with finding expected time for certain activity, finding variance for an activity, and finding critical path. thank you

3. The activities of a project are shown in the following table, with their precedence relations and the three time estimates. Three Time Estimates (Weeks) Immediate Predecessor(s) a. Find the expected time for activity F. b. What is the variance for activity C? c. What is the variance in completion time for the project? (Hint: find critical path)

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