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प्रश्न
Bring out the inconsistency in the following:
bYX = 1.9 and bXY = - 0.25
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उत्तर
Given, bYX = 1.9 and bXY = - 0.25
Here, bYX and bXY have different signs.
But, for consistent data, they must have the same signs.
∴ The given data is inconsistent.
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संबंधित प्रश्न
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| Advertisement expenditure (₹ in lakh) (X) |
Sales (₹ in lakh) (Y) | |
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| Standard Mean | 3 | 12 |
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If byx = 1.5 and bxy = `1/3` then r = `1/2`, the given data is consistent
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∴ `bary = square`
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∴ byx = `square/square`
∴ byx = `square/square`
∴ r = `square`
| x | y | xy | x2 | y2 |
| 6 | 9 | 54 | 36 | 81 |
| 2 | 11 | 22 | 4 | 121 |
| 10 | 5 | 50 | 100 | 25 |
| 4 | 8 | 32 | 16 | 64 |
| 8 | 7 | `square` | 64 | 49 |
| Total = 30 | Total = 40 | Total = `square` | Total = 220 | Total = `square` |
bxy = `square/square`
byx = `square/square`
∴ Regression equation of x on y is `square`
∴ Regression equation of y on x is `square`
