On a 10-Item Test, Three Students in Professor Hsin's Advanced

question 76

Multiple Choice

On a 10-item test, three students in Professor Hsin's advanced chemistry seminar received scores of 2, 5, and 8, respectively. For this distribution of test scores, the standard deviation is equal to the square root of

• A) 4.
• B) 5.
• C) 6.
• D) 9.

---

Definitions:

First Mover

A company that gains a competitive advantage by being the first to market with a new product or service.

Theory of Absolute Advantage

An economic theory proposed by Adam Smith, which suggests that countries should specialize in the production of goods for which they have an absolute advantage.

Theory of Comparative Advantage

An economic principle stating that countries or entities benefit from specializing in and exporting goods for which they have a lower opportunity cost.

Theory of Economies of Scale

An economic concept that describes how as a firm increases its production scale, the average cost per unit of output decreases, leading to increased efficiency.