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Given the following network with activities and times estimated in weeks. A D E Finish K Start B F C 5 H J Most Probable

Given the following network with activities and times estimated in weeks. A D E Finish K Start B F C 5 H J Most Probable Pessimistic 2 5 Activity Optimistic J ABCDEFGHIUK 6 5 3 8 4 3521 67045288214 13724966733 a. (10) Calculate the mean time for each activity. b. (10) Calculate the variance of time for each activity

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