Interested in relationship between time spent studying (x) and exam scores (y). Mean for time spent studying is 7 and average exam score is 86.8. Calculate covariance between the two variables. X Y x deviations y deviations 1. 5 80 -2 -6.82. 4 94 -3 7.23. 7 75 0 -11.84. 9 100 2 13.25. 10 85 3 -1.8 Here is the chart it did not come out right at first

X deviations y deviations 80 - 2 68 - 6.8 2 . 94 - 3 7. 2 3 75 - 11.8 4. 9 1 100 NOU 13. 2 5. 10 85 - 1.8