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

question 113

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. Professor Elderman offers his class of 36 a pizza party if the class average is above 80. What is the probability that he will have to deliver on his promise?

• A) 0.0228
• B) 0.3707
• C) 0.6293
• D) 0.9772

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Definitions:

In-line Skates

Skates with all wheels aligned in a single row down the middle, allowing for greater speed and agility than traditional roller skates.

Surfboards

Long, narrow boards used in the sport of surfing to ride waves, traditionally made of wood but now also from various synthetic materials.

Exchange Rate

The equivalent value of one currency when swapped for another.

Wine

An alcoholic beverage made from fermented grapes or other fruits.