Write the range of the values for the coefficient of correlation.

The range of values for coefficient of correlation is

If the two coefficients of regression are negative, what will be the sign of the value of coefficient of correlation?

Calculate the value of Karl Person's coefficient of correlation for following:

If the line of regression are parallel to the coordinate axis, then the coefficient of correlation is

Write the range of the signum function.

Calculate the coefficient of correlation between two variables x and y for 12 pairs of observation, the following data was obtained. Sigmax=20,Sigmay=6,Sigmax^(2)=650,Sigmay^(2)=280,Sigmaxy=330 On rechecking, it was found that one pair (12,8) was wrongly copied while the correct pair being (9,13) . find the correct value of coefficient of correlation.

Write the relation between coefficient of correlation and regression coefficients

If the regression coefficients y on x and x on y respectively are 0.8 and 0.2, what would be the value of coefficient of correlation?

If the line of regression coincide, then the coefficient of correlation is

A ball is projected in a direction inclined to the vertical and bounces on a smooth horizontal plane. The range of one rebound is R . If the coefficient of restitution is e , then range of the next rebound is