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Question
State whether the following statement is True or False:
If equation of regression lines are 3x + 2y – 26 = 0 and 6x + y – 31= 0, then mean of X is 7
Options
True
False
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Solution
False
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Solution:
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∴ `b_(yx)=(sum(x_i-barx)(y_i-bary))/(sum(x_i-barx)^2)=square`
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`x-barx=b_(xy)(y-bary)` `x-barx=square(y-bary)`
