Customers Arrive at a Common Queue at the Coffee Station

question 44

Multiple Choice

Customers arrive at a common queue at the coffee station with two identical coffee machines in a busy mall at the rate of 48 per hour, following Poisson distribution. Each customer mixes his or her specialty coffee taking 2 minutes on an average following an exponential process. What is the expected number of customers in the system at this coffee station?

• A) infinity
• B) 2.844
• C) 2.444
• D) 4.444
• E) 3

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Definitions:

Community Psychology

This discipline studies the interplay between individuals and their communities, aiming to enhance quality of life through research and intervention.

Research

The systematic investigation into and study of materials and sources in order to establish facts and reach new conclusions.

Community Psychologists

Experts in psychology focusing on community-based issues and interventions to promote psychological health and social cohesion.

Positive Sense

An optimistic or affirmative attitude or interpretation towards a situation or piece of information.