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Calculate coefficient of correlation,between the age of husbands and wives. |
Answer» Solution : X=(X-BAR(X)),y=(Y-bar(Y)) `bar(X)=(sunX)/(N)=(174)/(6)=29,bar(Y)=(sumY)/(N)=(156)/(6)=26` `sumxy=191=sumx^(2)=208,sumy^(2)=178` `r=(sumxy)/(sqrt(sumx^(2)xxsumy^(2)))` `r=(191)/(sqrt(208xx178))` `=(191)/(sqrt(37,024))` `=(191)/(192.42)=0.993` Coefficient of Correlation (r)=0.993 Thus, there is a high degree of POSITIVE correlation between the age of husband and wife. |
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