Question
The amount spent on groceries per week (y) and the number of household members (x) are...
The amount spent on groceries per week (y) and the number of household members (x) are shown below.
| x | 2 | 3 | 3 | 4 | 1 | 5 |
| y | 383 | 420 | 466 | 547 | 206 | 622 |
Calculate the correlation coefficient r.
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