Question: 3. In the following table task durations are given in weeks. Use the information to answer the questions: Variance Pessimistic Expected Time 6 Activity Predecessor

3. In the following table task durations are

3. In the following table task durations are given in weeks. Use the information to answer the questions: Variance Pessimistic Expected Time 6 Activity Predecessor Optimistic A None 2 B None 3 C A 4 D A 4 E B, C 4 F D 3 Normal 4 5 5 6 9 7 10 7 5 4 5 8 8 G E 3 a. Calculate the expected time and variance for each task b. Draw the network and find the critical path and time Find the probability that the critical path will be completed in 23 weeks c

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