Find the regression coefficients `b_(yx) and b_(xy)` between x and y for the data `n =8, sum x=36, sumy=48, sumxy=225, sumx^(2)=146, sumy^(2)=324`.

Find the Kari Pearson's Coefficient of correlation between x and y for the data

Find cov (X,Y) between x and y for the given data sum x_(i)=sum y_(i)=49, sum x_(i)y_(i)=121, n=8

Find the sum of the coefficients in (x + y)^(8)

Covariance (x,y) between x and if sumx=15, sum y=40, sumxy=110, n=5 is

If the regression equation x on y is 3x+2y=26 then b_(xy) equals to

For observations of pairs (x,y) of the variables x and y, the following results are obtained sumx=100, sumy=70, sumx^(2)=2500, sumy^(2)=2000, sumxy=100 and n =20 . Find the equation of the line of regresion of X and Y. Estimate the value of x if y=4.

Find (i) mean vecx and vecy , (ii) regression coefficeint b_(yx) and b_(xy) , (iii) coefficeint of correlation between x and y for the following two regression lines 2x+3y-10=0 and 4x+y-5=0

Find the regression coefficient b_(yx) and b_(xy) and the two lines of regression for the following data.Also compute the correlation coefficient

if a=sum x^(n),b=sum x^(n),c=sum(xy)^(n)