The following precedence diagram reflects three time estimates for each activity. Determine: The expected completion time for each path and its...

The following precedence diagram reflects three time estimates for each activity. Determine:1. The expected completion time for each path and its variance. (Round your final answers to 2 decimal places.)2. The probability that the project will require more than 49 weeks. (Round your final answer to 4 decimal places.)3. The probability that the project can be completed in 46 weeks or less. (Round your final answer to 4 decimal places.)