answer ((e)) question only and be clear pleaze

Assume the WBS of a given project is illustrated in the following table: Activity A Predecessor Most Likely 6 B D E F G Optimistic 4 4 6 4 2 5 2 Pessimistic 14 14 14 12 12 11 8 9 13 8 10 5 5 AB D CE E Non Find the mean and standard deviation of each task in this project then find the following: a) The project network. b) The critical path. c) The probability to finish the project in less than 35 weeks. d) The probability to finish the project in more than 31 weeks. e) The probability to finish the project between 31 and 35 weeks. f) The probability to finish the project in less than 31 or more than 35. g) In how many weeks can we complete the project with 90% probability