Students Arrive Randomly at the Help Desk of the Computer

question 87

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. How many students, on the average, will be waiting in line at any one time?

• A) 0.9 students
• B) 1.5 students
• C) 3 students
• D) 4 students
• E) 36 students

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Definitions:

Impeachment

The formal process by which governmental officials can be accused and tried for misconduct, with possible removal from office upon conviction.

Executive Privilege

Executive Privilege is the right claimed by the President of the United States and other members of the executive branch to withhold information from Congress or the courts.

Supreme Court

The highest federal court in the United States, with the ultimate judicial authority to interpret and decide upon the constitutionality of laws.

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