From the following data, compute Karl Pearson coefficient of correlation : Summation of product of deviation of X and Y series from their respective means is 46

From the following data, compute Karl Pearson coefficient of correlati

1.	From the following data, compute Karl Pearson coefficient of correlation : Summation of product of deviation of X and Y series from their respective means is 46
Answer» Solution :We are given `N=7,bar(X)=4,bar(Y)=8,SUMX^(2)=28,sumy^(2)=76,sumxy=46` `r=(sumxy)/(sqrt(sumx^(2)xxsumy^(2)))` Substituting the values, we get `r=(46)/(sqrt(28xx76))=(46)/(sqrt(2,128))=(46)/(sqrt(46.13))=0.997` Coefficient of Correlation (r)=0.997