Students Arrive Randomly at the Help Desk of the Computer

question 103

Multiple Choice

Students arrive randomly at the help desk of the computer lab.There is only one service agent,and the time required for inquiry varies from student to student.Arrival rates have been found to follow the Poisson distribution,and the service times follow the negative exponential distribution.The average arrival rate is 12 students per hour,and the average service rate is 20 students per hour.A student has just entered the system.How long is she expected to stay in the system?

• A)0.125 minutes
• B)0.9 minutes
• C)1.5 minutes
• D)7.5 minutes
• E)0.075 hours

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Definitions:

Social Structure

Represents the organized pattern of social relationships and social institutions that together compose society.

Media

encompasses various platforms of communication, including television, radio, newspapers, and the internet, used to disseminate information to a large audience.

Agency

The ability of people or collectives to operate autonomously and make decisions freely.

Internet

A global network of computers that provides a vast range of communication and information-sharing services.