Mathematics · Coordinate Geometry
Let x - 3y + 4 = 0 and 2x - 7y + 8 = 0 be two lines of regression computed from a bivariate data. If byx and bxy are the regression coefficients of y on x and x on y respectively, then what is the value of bxy + 7byx?
- 15✓
- 22
- 31
- 4-2
Correct answer
5
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