Given the following sample observations, draw a scatter diagramon a separate piece of paper.
| | | | | |
| X: | −7 | −16 | 11 | 1 | 16 |
| Y: | 50 | 248 | 155 | 3 | 343 |
|
Compute the correlation coefficient. (Round your answerto 3 decimal places.)
Coefficient of correlation ________
Does the relationship between the variables appear to belinear?
Try squaring the x variable and then determine thecorrelation coefficient. (Round your answer to 3 decimalplaces.)
Coefficient of correlation ______
