A Service Counter Employs Two Servers

question 15

Multiple Choice

A service counter employs two servers.On average a server requires 8 minutes to process a customer and service times follow an exponential distribution.Customers arrive at the counter at the rate of 12 per hour according to a Poisson distribution.The average amount of time,in minutes,spent in the system (i.e. ,waiting and being served) is approximately

• A)0.237 minutes
• B)14.22 minutes
• C)22.20 minutes
• D)33.30 minutes

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Definitions:

Floating Ribs

The last two pairs of ribs in the human rib cage that are not attached to the sternum or other ribs, providing flexibility and protection to the lower abdomen.

True Ribs

The first seven pairs of ribs that are directly attached to the sternum through their own costal cartilages, providing protection to the thoracic organs.

Sternal Break

A fracture or break in the sternum, often a result of a direct blow or trauma to the chest area.

Xiphoid Process

The smallest and lowermost part of the sternum, providing attachment points for muscles and ligaments of the abdomen.