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Given the following data on advertising and sales. Find the value of the coefficient of correlation (r). Advertising Sales 10 50 20 70 30 70
Given the following data on advertising and sales. Find the value of the coefficient of correlation (r).
| Advertising | Sales |
| 10 | 50 |
| 20 | 70 |
| 30 | 70 |
| 40 | 80 |
| 50 | 100 |
| 60 | 105 |
| 70 | 103 |
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Understanding Public Opinion Polls
Authors: Jelke Bethlehem
1st Edition
1498769756, 9781498769754
