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

---

Definitions:

Cognition

The act of learning and comprehending by using one's thoughts, experiences, and sensory inputs.

Conditioned Stimulus

A stimulus that was once neutral but, through association with an unconditioned stimulus, eventually provokes a conditioned reaction.

Unconditioned Stimulus

A stimulus that naturally and automatically triggers a response without any need for prior learning.

Antecedent

An event or condition that precedes and triggers a behavior or action in the context of behavior analysis.