Two lines of regression are given by 5 x+7 y- 22=0 and 6 x+2 y-22=0 . If the variance of y is 15, find the standard deviation of x ?

Correlation and Regression

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Two lines of regression are given by

5 x+7 y-

22=0

and

6 x+2 y-22=0 .

If the variance of

y

15,

find the standard deviation of

x ?

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