A Student Asked a Statistics Professor If Grades Were Marked

question 20

Multiple Choice

A student asked a statistics professor if grades were marked "on the curve." The professor decided to give the student a project to determine if last year's statistics grades were normally distributed. The professor told the student that last year's mean mark was 70 with a standard deviation of 10 and to use the following results. What is the expected number of A's?

• A) 18.25
• B) 20.00
• C) 13.59
• D) 15.87
• E) 15.63

---

Definitions:

Prosocial Motivation

The desire to benefit others or contribute to the greater good through one’s actions and behaviors.

Self-oriented Role

A function or position within a group or team that focuses on personal growth, achievements, and responsibilities rather than collaborative goals.

Craving for Recognition

A strong desire or need to be acknowledged and valued by others for one's achievements or qualities.

Merit Pay

A compensation approach where employees' pay increases are based on their performance metrics.