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The equations of two lines of regression betweenvariables X and Y are 6 X + 9 Y - 2 2 8 = 0 and 7

The equations of two lines of regression betweenvariables X and Y are

6

+ 9

- 228 = 0

and

7

+ 3

- 116 = 0 .

Obtain the mean values of Xand Y

.

and comment on the values of regression coefficient byx and bxy

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