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    A calculus teacher wants to find out if her class's test scores are correlated to their overall grade point average. The data of the student's test scores and their corresponding grade point averages are found in the table below. Calculate the correlation coefficient.

    Test score 98 105 100 100 106 95 116 112

    GPA 2.1 2.4 3.2 2.7 2.2 2.3 3.8 3.4

    a. 0.559
    b. 0.716
    c. -0.559
    d. -0.716

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    Solution Summary

    Calculations for the correlation coefficient for test scores are calculated. The test score data to determine the overall grade point averages are discussed.