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Question
Choose the correct alternative.
If equations of regression lines are 3x + 2y − 26 = 0 and 6x + y − 31 = 0 then means of x and y are __________
Options
(7, 4)
(4, 7)
(2, 9)
(-4, 7)
Solution
If equations of regression lines are 3x + 2y − 26 = 0 and 6x + y − 31 = 0 then means of x and y are
(4, 7).
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