Professor Elderman Has Given the Same Multiple-Choice Final Exam in His

question 10

Multiple Choice

Professor Elderman has given the same multiple-choice final exam in his Principles of Microeconomics class for many years. After examining his records from the past 10 years, he finds that the scores have a mean of 76 and a standard deviation of 12. What is the probability Professor Elderman's class of 36 has a class average below 78?

• A) 0.1587
• B) 0.5675
• C) 0.8413
• D) Cannot be determined.

---

Definitions:

Reabsorption

The process by which the kidneys filter the blood, removing waste but reabsorbing water and other essential substances back into the bloodstream.

Diabetes Insipidus

A disorder marked by an imbalance of water in the body, leading to intense thirst and the production of large amounts of urine.

ADH

Antidiuretic hormone, a peptide hormone that regulates the amount of water reabsorbed by the kidneys.

Aldosterone

A steroid hormone produced by the vertebrate adrenal cortex; stimulates sodium reabsorption. See mineralocorticoids.