Question
Based on the data shown below, calculate the correlation coefficient (to three decimal places) x y...
Based on the data shown below, calculate the correlation
coefficient (to three decimal places)
| x | y |
|---|---|
| 5 | 65.8 |
| 6 | 68.4 |
| 7 | 73.6 |
| 8 | 70.8 |
| 9 | 75.8 |
| 10 | 77.4 |
r=r=
Homework Answers
Answer #1
| x | y | xy | x² | y² |
| 5 | 65.8 | 329 | 25 | 4329.64 |
| 6 | 68.4 | 410.4 | 36 | 4678.56 |
| 7 | 73.6 | 515.2 | 49 | 5416.96 |
| 8 | 70.8 | 566.4 | 64 | 5012.64 |
| 9 | 75.8 | 682.2 | 81 | 5745.64 |
| 10 | 77.4 | 774 | 100 | 5990.76 |
| Σx=45 | Σy=431.8 | Σxy=3277.2 | Σx²=355 | Σy²=31174.2 |
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