A random sample of 10 statistics students produced the following data, where x is the second exam
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Question:
A random sample of 10 statistics students produced the following data, where x is the second exam score out of 80, and y is the final exam score out of 200.
| x (Second exam score) | y (Final exam score) |
|---|---|
| 65 | 175 |
| 67 | 133 |
| 71 | 185 |
| 70 | 163 |
| 66 | 126 |
| 75 | 198 |
| 67 | 153 |
| 70 | 163 |
| 71 | 159 |
| 69 | 151 |
a) Find the correlation coefficient. Can you predict the final exam score of a randomly selected student if you know the third exam score?
b) What would you predict the final exam score to be for a student who scored a 66 on the third exam?
c) What would you predict the final exam score to be for a student who scored a 90 on the third exam?
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