Calculate the covariance between variables X and Y. Is it apositive or negative relationship between the two variables?
b. Calculate correlation coefficient between X and Y. Is it apositive or negative relationship? Is it a strong linear, weaklinear or nonlinear relationship between X and Y?
c. Use the Y data to calculate mean, range, standard deviationand variance.
d. Use the first Y value to calculate the Z-score. Is it anoutlier?
e. Calculate the 60th percentile for the Y data.
| 1 | -22 | 22 |
| 2 | -33 | 49 |
| 3 | 2 | 8 |
| 4 | 29 | -16 |
| 5 | -13 | 10 |
| 6 | 21 | -28 |
| 7 | -13 | 27 |
| 8 | -23 | 35 |
| 9 | 14 | -5 |
| 10 | 3 | -3 |
| 11 | -37 | 48 |
| 12 | 34 | -29 |
| 13 | 9 | -18 |
| 14 | -33 | 31 |
| 15 | 20 | -16 |
| 16 | -3 | 14 |
| 17 | -15 | 18 |
| 18 | 12 | 17 |
| 19 | -20 | -11 |
| 20 | -7 | -22 |
