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Find out the correct answer out of the options given against each question : In usual significance,n if 3y - 2x = 9 be the regression line of y on x and if `r _x,y =1/3`, var (x) = 4, then var (y) =

A

4

B

9

C

1

D

none of these.

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UNITED BOOK HOUSE-HIGHER SECONDARY EXAMINATION 2017-Exercise
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