A random sample for 11 exam scores produced the following (hours of study, grade) data values. Hours Studied (X) Test Grade (Y) 8 86 5 74 a. Compute the covariance. b. Compute the correlation coefficient. 3 58 1 57 250 55 5 67 7 84 6 78 7 92 64 w 3 40 80

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