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    Introduction to Probability and Statistics
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    Exam 7: Sampling Distributions
  5. Question
    The Scores of a Class Are Normally Distributed with a Mean
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The Scores of a Class Are Normally Distributed with a Mean

Question 204

Question 204

Multiple Choice

The scores of a class are normally distributed with a mean of 82 and a standard deviation of 8. What is the probability that the mean score of a sample of 64 students is at least 80?


A) 0.0987
B) 0.4772
C) 0.5987
D) 0.9772

Correct Answer:

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