A Service Counter Employs Two Servers

question 55

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 probability that an arriving customer must wait for service is

• A)0.7111
• B)0.8000
• C)0.8576
• D)0.9327

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Definitions:

Mobile-first Approach

A design strategy that prioritizes the optimization of websites and applications for mobile devices before making adaptations for desktop or larger screens.

Optimum Viewing

The best or most favorable conditions for seeing or observing something.

Smartphones and Tablets

Portable electronic devices with touchscreens used for a variety of tasks, including communication, internet browsing, and media consumption.

Mobile Communication Technology

Technologies that enable communication and data exchange through mobile devices such as smartphones and tablets.