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Question
Among the given regression lines 6x + y – 31 = 0 and 3x + 2y – 26 = 0, the regression line of x on y is ______
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Solution
6x + y – 31 = 0
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`"Y" - bary = square ("X" - barx)`
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∴ Y − 12 = `0.6 xx 4/square ("X" - 10)`
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∴ Y − 12 = −4
∴ Y = `square`
