Question: 2. (15 points) The waiting time (in hours) between consecutive hospital emergency visits during a pandemic is modeled as an the waiting time observed at

2. (15 points) The waiting time (in hours) between consecutive hospital emergency visits during a pandemic is modeled as an the waiting time observed at a hospital in city A. Let Y be the waiting time observed at a hospital in city B. Assume that waiti cities. (a). Find E (X + Y ) and E (XY). (b). Let y1, y2, ......., 25 be a random sample of 25 waiting times at the hospital in city B. The sample mean was y = 2.8. A likelihood estimate of )

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