CORRELATION ANALYSIS Determine the relationship between the number of hours students spent per week on studying the lessons on the modules on Statistics and Probability and their obtained grades for the grading period. A random sample of 10 students is selected. The data obtained are shown in the table. Calculate the Pearson's sample correlation coefficient and interpret the result. Number of hours studying Student Grade (y) x² y² xy per week (x) 1 4 96 2 2 83 3 1 81 4 1 79 5 4 88 6 3 87 7 3 90 8 1 77 9 2 85 10 2 82 Computation: Ex= Σy= Ex²= Ey²= Exy=

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