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

question 109

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 less than 16 minutes to grade?

• A) 0.1401
• B) 0.5910
• C) 0.7734
• D) 0.9131

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Definitions:

Instinct

Instinct denotes the inherent inclination of a living organism towards a particular complex behavior, which is unlearned and often serves survival and reproductive purposes.

Cognition

The act of obtaining knowledge and insights through the faculties of the mind, personal experiences, and sensory input.

Anxiety

A feeling of worry, nervousness, or unease about something with an uncertain outcome, often reflecting a concern about future events.

Individual Level

Focuses on the behavior, characteristics, and experiences of an individual, as opposed to the dynamics of groups or societal levels.