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

---

Definitions:

Profitability

A measure of the efficiency and financial success of a business, indicated by the amount of profit generated relative to revenue and expenses.

Market Pay

The average amount of compensation given to employees within a specific job market, industry, or geographic area.

Job Classification System

A method for categorizing jobs into groups or classes based on similar duties, responsibilities, and qualifications.

Smaller Employers

Businesses or organizations with a lower number of employees, often having different management and operational needs than larger companies.