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.

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