Students Arrive Randomly at the Help Desk of the Computer

question 99

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 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

Appreciate the role of double-blind procedures in reducing experimental bias.

Identify the limitations of correlational research and the inability to infer causation from correlation.

Acknowledge the influence of the psychologists’ personal values on their research choices and the potential psychological knowledge misuse.

Understand the significance of utilizing various studying and learning strategies (e.g., SQ3R method, retrieval practice) for effective knowledge retention and application.

---

Definitions:

Controlling Interest

An ownership interest in a business entity through which a shareholder or group of shareholders can exert influence or control over management and operating policies.

Net Income

The total revenue minus expenses, taxes, and costs over a specific period, indicating the profit earned by a company.

Amortized

The gradual reduction of a debt over a period of time through regular payments that cover both interest and principal.

Bonds Payable

Long-term debt instruments issued by corporations or governments to raise capital, with an obligation to pay interest and repay principal at a specified date.