Project Management

Step 1: Understand the formula for expected time.
In project management, particularly in PERT (Program Evaluation and Review Technique), the expected time of an activity is calculated using the weighted average of three time estimates:
- A = Optimistic time (the minimum possible time),
- B = Pessimistic time (the maximum possible time),
- C = Most likely time (the most probable time).
The expected time is calculated as: Step 2: Conclusion This formula provides a weighted average with a higher weight given to the most likely time. Final Answer:

Step 1: Understand the sequence of a feedback control loop.
In a feedback control system:
- Error detection (B) measures the deviation from the desired state.
- The controller (C) processes the error and adjusts the actuator.
- The actuator (A) applies the necessary adjustment to the system.
- The feedback sensor (D) detects the system’s new state and feeds it back to the controller.
Step 2: Conclusion The correct order is: (B), (C), (A), (D). Final Answer: