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Question A random sample of 11 students produced the following data, where x is the test score before a study session, and y is the test score after a study session. The data are presented below in the table of values. xy 1425 1626 1724 2027 2332 2427 2732 2934 3137 3438 3635 What is the value of the correlation coefficient, r, rounded to four decimal places?

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