Students Arrive Randomly at the Help Desk of the Computer

question 100

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. On average, how long does it take to service each student?

• A) 1 minute
• B) 2 minutes
• C) 3 minutes
• D) 5 minutes
• E) 20 minutes

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Definitions:

Implementation Costs

Expenses associated with putting a newly adopted system, plan, or policy into effect.

Arbitrage

The practice of buying and selling assets in different markets or in different forms to profit from price discrepancies.

Confirmation Bias

Searching for (and giving more weight to) information and opinion that confirms what you believe rather than information and opinion to the contrary.

Over-Optimism

A tendency to have an overly positive outlook or expectations, particularly regarding projects or financial forecasts.