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Question
If the sign of the correlation coefficient is negative, then the sign of the slope of the respective regression line is ______
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Solution
negative
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| Production (X) |
Demand (Y) |
|
| Mean | 85 | 90 |
| Variance | 25 | 36 |
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| 1 | 5 | – 2 | – 4 | 8 | 4 | 16 |
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| 3 | 9 | 0 | 0 | 0 | 0 | 0 |
| 4 | 11 | 1 | 2 | 2 | 4 | 4 |
| 5 | 13 | 2 | 4 | 8 | 1 | 16 |
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| 6 | 9 | 54 | 36 | 81 |
| 2 | 11 | 22 | 4 | 121 |
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