The Scores on a Certain Test Are Normally Distributed with a Mean

question 55

Multiple Choice

The scores on a certain test are normally distributed with a mean score of 53 and a standard deviation of 5. What is the probability that a sample of 90 students will have a mean score of at
Least 53.527?

• A) 0.3174
• B) 0.8413
• C) 0.3413
• D) 0.1587