Posted by **mark** on Tuesday, June 7, 2011 at 8:10pm.

automoniles arrive at the drive-through windom at a post office at the rate of 4 every 10 minutes. the average service time is 2 minutes. the poisson distributimes are exponentially distributed.

(A) what is the average time a car is in the system?

(b) what is the average number of cars in the system?

(c) what is the average time cars spend waiting to receive service?

(d) what is the average number of cars in line behind the customer receiving service?

(e) what is the probability that there are no cars at the window?

(f) what percentage of the time is the postal clerk busy?

(g) what is the probability that there are exactly 2 cars in the system?

## Answer This Question

## Related Questions

- Operation Management - Customers arrive at service window every 3.6 minutes(...
- Operations Management - Fresh Sub hires three workers during the peak hours. ...
- Statistics - Service times for customers at a post office follow some right-...
- operations management/supply chain - Suppose you are managing a service system ...
- statistics - c. The arrival of large jobs at a computer centre forms a Poisson ...
- Math - Statistics - Suppose that the mean number of customers who arrive at the ...
- Math - Suppose that the service rate to a waiting line system is 10 customers ...
- business - Customers arrive at Paul HarroldĄ¯s styling shop at a rate of 3 per ...
- math-probability - uppose that cars arrive at a traffic light according to a ...
- math - the courier service company has found that their time of parcels to ...

More Related Questions