The data below is 11 observations of Math SAT scores (x) and scores on Math placement test (y). Calculate the linear correlation coefficient, . Enter your answers to two decimal places.
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| X | Y |
|---|---|
| 440 | 429 |
| 420 | 339 |
| 490 | 524 |
| 470 | 456 |
| 480 | 516 |
| 540 | 498 |
| 500 | 556 |
| 520 | 554 |
| 580 | 644 |
| 400 | 322 |
| 560 | 512 |
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