Which of the Following Describes Standard Deviation

question 98

Multiple Choice

Which of the following describes standard deviation?

• A) It is the average of the greatest and least values in the data set.
• B) It is the square root of the variance.
• C) It is the difference between the first and third quartiles of a data set.
• D) It is the average of the squared deviations of the observations from the mean.

---

Definitions:

Human Factors Psychology

A field that applies psychological and physiological principles to the engineering and design of products, processes, and systems, enhancing human usability and performance.

360-degree Feedback

A performance appraisal method where an employee is evaluated by feedback from various sources including peers, supervisors, subordinates, and sometimes, customers.

Transformational Leadership

A leadership style that inspires positive changes in those who follow, by focusing on collaboration, communication, and an emphasis on achieving significant transformations.

Democratic Management Style

A management approach involving staff members in decision-making processes and treating everyone's opinion as valuable.