Question: The processing durations of packets by a node are independent and exponentially distributed with mean thirty ms. The first packet arrives at time t=0, the

The processing durations of packets by a node are independent and exponentially distributed with mean thirty ms. The first packet arrives at time t=0, the second packet arrives 5 ms later. What is the expected value of the time between the arrival of the first packet and the departure of the second packet? (Hint: Consider the possibilities: time taken to process the first packet 5 ms and >5 ms)

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