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There are two series of index numbers : P for price index and S for stock of a commodity.The mean and standard deviation of P are 100 and 8 and of S are 103 and 4 respectively.The correlation coefficient between the two series is 0.4,with these data,obtain the regression lines of P on S and S on P.

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Regression line of y on x is: Y=0.2X+83 Regression line of x on y is: X=0.8Y+17.6
answered Dec 9, 2017 by adv.rathore1974
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