If u = x-205 and v = y-304, then byx = ______ - Mathematics and Statistics

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If u = `(x - 20)/5` and v = `(y - 30)/4`, then byx = ______

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Solution

`4/5` bvu 

Concept: Properties of Regression Coefficients
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Chapter 2.3: Linear Regression - Q.3

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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`

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