The Time for a Professor to Grade a Student's Homework

question 132

Multiple Choice

The time for a professor to grade a student's homework in statistics is normally distributed with a mean of 12.6 minutes and a standard deviation of 2.5 minutes. What is the probability that randomly selected homework will require between 11 and 15 minutes to grade?

• A) 0.4875
• B) 0.7567
• C) 0.5704
• D) 0.9637

Apply statistical analysis to real-world scenarios, such as TV show ratings, advertisement efficiency, song ratings, and demographic studies.

Understand the relationship between correlation coefficients and the strength and direction of relationships.

Realize the importance of statistical testing in decision-making processes for businesses and marketing strategies.

Understand the concept of randomness in events and its contrast to determinism.

---

Definitions:

Humm Factor

The measure of ambience or mood created by the collective sound or murmur from a group of people, often indicating energy or engagement.

Qualitative Responses

Non-numerical feedback or data that provides insights into perceptions, opinions, and behaviors.

Complexity

The degree to which a system, project, or problem contains numerous or intricate parts requiring careful analysis or handling.

Team Effectiveness

A measure of how well a team achieves its goals, accomplishes tasks, and meets the needs and objectives of the organization.