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Question: AP Stats 2006. The College Board reported the score distribution shown in the table for all students who took the 2006 AP Statistics exam.
Score Percent of students
5 12.6
4 22.2
3 25.3
2 18.3
1 21.6
a) Find the mean and standard deviation of the scores.
b) If we select a random sample of 40 AP Statistics students, would you expect their scores to follow a Normal model? Explain.
c) Consider the mean scores of random samples of 40 AP Statistics students. Describe the sampling model for these means (shape, center, and spread).
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